All Results|Race Analytics|Course|Contact

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Chunmei Li

Bib: 21300 •F •Age: N/A

Boston Marathon logo
0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Age Group (F45-49)
#0 / 1786
Race Day Weather
51°/41°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
25:36
3.11 mi
Rank: #18490
Start → 5K
25:36 | 8:15/mi
10K
51:04
6.21 mi
Rank: #18521 (-31)
5K → 10K
25:28 | 8:12/mi
15K
1:17:32
9.32 mi
Rank: #19116 (-595)
10K → 15K
26:28 | 8:32/mi
20K
1:44:25
12.43 mi
Rank: #19382 (-266)
15K → 20K
26:53 | 8:40/mi
HALF
1:50:23
13.11 mi
Rank: #19493 (-111)
20K → HALF
5:58 | 8:46/mi
25K
2:14:38
15.53 mi
Rank: #20661 (-1168)
HALF → 25K
24:15 | 10:00/mi
30K
2:43:02
18.64 mi
Rank: #20582 (+79)
25K → 30K
28:24 | 9:09/mi
20M
2:55:34
20.00 mi
Rank: #20522 (+60)
30K → 20M
12:32 | 9:14/mi
21M
3:05:32
21.00 mi
Rank: #20511 (+11)
20M → 21M
9:58 | 9:58/mi
35K
3:12:17
21.75 mi
Rank: #20494 (+17)
21M → 35K
6:45 | 9:02/mi
23M
3:23:51
23.00 mi
Rank: #20434 (+60)
35K → 23M
11:34 | 9:15/mi
24M
3:32:37
24.00 mi
Rank: #20351 (+83)
23M → 24M
8:46 | 8:46/mi
40K
3:40:19
24.85 mi
Rank: #20271 (+80)
24M → 40K
7:42 | 9:01/mi
25.2M
3:43:46
25.20 mi
Rank: #20259 (+12)
40K → 25.2M
3:27 | 10:01/mi
FINISH
3:52:48
26.22 mi
Rank: #20244 (+15)
25.2M → FINISH
9:02 | 8:52/mi
Unlock Your Full

AI Performance Report

New

Understand What Really Happened During Your Race

Go deeper with personalized analysis powered by your official race data.

Your AI Performance Report includes:
  • Fatigue & pacing analysis
  • Finish time optimization
  • Qualification readiness
  • Segment-by-segment breakdown
  • Personalized race insights
  • Downloadable athlete report
Shareable via link — view it anywhere, share with anyone
AI Report Preview
Generating your preview…
$4.99
One-time purchase for this race
Includes a shareable link

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:50:23
Pace8:26 /mi
2nd Half
Distance13.11 mi
Time2:02:25
Pace9:21 /mi
📊Positive Split: 10.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:5925:368:1525:36
8:15
-
10K
6.21 mi11:52:2751:048:1425:28
8:12
-0:03
15K
9.32 mi12:18:551:17:328:2026:28
8:32
+0:20
20K
12.43 mi12:45:481:44:258:2526:53
8:40
+0:08
HALF
13.11 mi12:51:461:50:238:265:58
8:46
+0:06
25K
15.53 mi13:16:012:14:388:4124:15
10:00
+1:14
30K
18.64 mi13:44:252:43:028:4528:24
9:09
-0:51
20M
20.00 mi13:56:572:55:348:4712:32
9:14
+0:05
21M
21.00 mi14:06:553:05:328:519:58
9:58
+0:44
35K
21.75 mi14:13:403:12:178:516:45
9:02
-0:56
23M
23.00 mi14:25:143:23:518:5211:34
9:15
+0:13
24M
24.00 mi14:34:003:32:378:528:46
8:46
-0:29
40K
24.85 mi14:41:423:40:198:527:42
9:01
+0:15
25.2M
25.20 mi14:45:093:43:468:533:27
10:01
+1:00
FINISH
26.22 mi14:54:113:52:488:549:02
8:52
-1:09

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

8:12 /mi

Average Pace

8:53 /mi

Slowest Pace

10:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

1:44:25

45% of race

Time at Steady Pace

1:30:43

39% of race

Time at Slower Pace

37:40

16% of race

Average Pace: 8:53 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:26:5925:368:1525:36
8:15
#18490
10K
6.21 mi11:52:2751:048:1425:28
8:12
#18521
15K
9.32 mi12:18:551:17:328:2026:28
8:32
#19116
20K
12.43 mi12:45:481:44:258:2526:53
8:40
#19382
HALF
13.11 mi12:51:461:50:238:265:58
8:46
#19493
25K
15.53 mi13:16:012:14:388:4124:15
10:00
#20661
30K
18.64 mi13:44:252:43:028:4528:24
9:09
#20582
20M
20.00 mi13:56:572:55:348:4712:32
9:14
#20522
21M
21.00 mi14:06:553:05:328:519:58
9:58
#20511
35K
21.75 mi14:13:403:12:178:516:45
9:02
#20494
23M
23.00 mi14:25:143:23:518:5211:34
9:15
#20434
24M
24.00 mi14:34:003:32:378:528:46
8:46
#20351
40K
24.85 mi14:41:423:40:198:527:42
9:01
#20271
25.2M
25.20 mi14:45:093:43:468:533:27
10:01
#20259
FINISH
26.22 mi14:54:113:52:488:549:02
8:52
#20244
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi184906792679220277(Top 70%)7742(Top 62%)7742(Top 433%)
10K6.21 mi3.10 mi18521-316791+16791+118567(Top 64%)6784(Top 54%)6784(Top 380%)
15K9.32 mi3.11 mi19116-5957123-3327123-33220277(Top 70%)7742(Top 62%)7742(Top 433%)
20K12.43 mi3.11 mi19382-2667281-1587281-15820194(Top 70%)7739(Top 62%)7739(Top 433%)
HALF13.11 mi0.68 mi19493-1117333-527333-5221600(Top 74%)8425(Top 67%)8425(Top 472%)
25K15.53 mi2.42 mi20661-11687987-6547987-65424305(Top 84%)9870(Top 78%)9870(Top 553%)
30K18.64 mi3.11 mi20582+797964+237964+2320260(Top 70%)7867(Top 63%)7867(Top 440%)
20M20.00 mi1.36 mi20522+607937+277937+2719985(Top 69%)7814(Top 62%)7814(Top 438%)
21M21.00 mi1.00 mi20511+117940-37940-320322(Top 70%)8026(Top 64%)8026(Top 449%)
35K21.75 mi0.75 mi20494+177950-107950-1020136(Top 69%)8008(Top 64%)8008(Top 448%)
23M23.00 mi1.25 mi20434+607930+207930+2019619(Top 68%)7799(Top 62%)7799(Top 437%)
24M24.00 mi1.00 mi20351+837899+317899+3118391(Top 63%)7194(Top 57%)7194(Top 403%)
40K24.85 mi0.85 mi20271+807883+167883+1618473(Top 64%)7306(Top 58%)7306(Top 409%)
25.2M25.20 mi0.35 mi20259+127880+37880+319478(Top 67%)7811(Top 62%)7811(Top 437%)
FINISH26.22 mi1.02 mi20244+157889-97889-919937(Top 69%)8049(Top 64%)8049(Top 451%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21
+97ft-345ft

Overall

20277

Females

7742

F45-49

7742

5K→10K

3.1 - 6.2 mi

Top 64%
×5
+79ft-138ft

Overall

18567

Females

6784

F45-49

6784

10K→15K

6.2 - 9.3 mi

Top 70%
×3
+67ft-78ft

Overall

20277

Females

7742

F45-49

7742

15K→20K

9.3 - 12.4 mi

Top 70%
×5
+106ft-86ft

Overall

20194

Females

7739

F45-49

7739

20K→HALF

12.4 - 13.1 mi

Top 74%
×2
+19ft-37ft

Overall

21600

Females

8425

F45-49

8425

HALF→25K

13.1 - 15.5 mi

Top 84%
×4
+66ft-88ft

Overall

24305

Females

9870

F45-49

9870

25K→30K

15.5 - 18.6 mi

Top 70%
×9
+181ft-148ft

Overall

20260

Females

7867

F45-49

7867

30K→20M

18.6 - 20.0 mi

Top 69%
×5
+64ft-50ft

Overall

19985

Females

7814

F45-49

7814

20M→21M

20.0 - 21.0 mi

Top 70%
×8
+106ft-24ft

Overall

20322

Females

8026

F45-49

8026

21M→35K

21.0 - 21.8 mi

Top 69%
×7
+17ft-86ft

Overall

20136

Females

8008

F45-49

8008

35K→23M

21.8 - 23.0 mi

Top 68%
×5
+23ft-63ft

Overall

19619

Females

7799

F45-49

7799

23M→24M

23.0 - 24.0 mi

Top 63%
×6
+12ft-82ft

Overall

18391

Females

7194

F45-49

7194

24M→40K

24.0 - 24.9 mi

Top 64%
×1
+6ft-20ft

Overall

18473

Females

7306

F45-49

7306

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1
+13ft-16ft

Overall

19478

Females

7811

F45-49

7811

25.2M→FINISH

25.2 - 26.2 mi

Top 69%
×2
+22ft-21ft

Overall

19937

Females

8049

F45-49

8049

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1186
Passed By
1350
Net Change
-1754
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18490
5K → 10K200200-31#18490#18521
10K → 15K42200-595#18521#19116
15K → 20K77200-266#19116#19382
20K → HALF6117-111#19382#19493
HALF → 25K11200-1168#19493#20661
25K → 30K200121+79#20661#20582
30K → 20M11959+60#20582#20522
20M → 21M7564+11#20522#20511
21M → 35K5538+17#20511#20494
35K → 23M10545+60#20494#20434
23M → 24M10623+83#20434#20351
24M → 40K9616+80#20351#20271
40K → 25.2M3220+12#20271#20259
25.2M → FINISH6247+15#20259#20244
TOTALS11861350-1754
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

Loading...

🎨Heatmap Timeline

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Activity Data

Upload your GPX file to see detailed activity metrics

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export & Support

Download your data, get help, and share your feedback

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback