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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Chun Feng

Bib: 21497 •F •Age: N/A

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0:00
0:00
/ mi
Masters
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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
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  • Qualification readiness
  • Segment-by-segment breakdown
  • Personalized race insights
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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
26:53
3.11 mi
Rank: #20950
Start → 5K
26:53 | 8:40/mi
10K
53:15
6.21 mi
Rank: #20569 (+381)
5K → 10K
26:22 | 8:30/mi
15K
1:19:57
9.32 mi
Rank: #20603 (-34)
10K → 15K
26:42 | 8:36/mi
20K
1:48:25
12.43 mi
Rank: #21166 (-563)
15K → 20K
28:28 | 9:10/mi
HALF
1:55:06
13.11 mi
Rank: #21461 (-295)
20K → HALF
6:41 | 9:49/mi
25K
2:18:12
15.53 mi
Rank: #21773 (-312)
HALF → 25K
23:06 | 9:32/mi
30K
2:47:40
18.64 mi
Rank: #21750 (+23)
25K → 30K
29:28 | 9:30/mi
20M
3:00:54
20.00 mi
Rank: #21765 (-15)
30K → 20M
13:14 | 9:45/mi
21M
3:12:31
21.00 mi
Rank: #21986 (-221)
20M → 21M
11:37 | 11:37/mi
35K
3:19:13
21.75 mi
Rank: #21904 (+82)
21M → 35K
6:42 | 8:58/mi
23M
3:30:50
23.00 mi
Rank: #21795 (+109)
35K → 23M
11:37 | 9:17/mi
24M
3:39:30
24.00 mi
Rank: #21661 (+134)
23M → 24M
8:40 | 8:40/mi
40K
3:46:54
24.85 mi
Rank: #21507 (+154)
24M → 40K
7:24 | 8:40/mi
25.2M
3:50:07
25.20 mi
Rank: #21445 (+62)
40K → 25.2M
3:13 | 9:20/mi
FINISH
3:58:52
26.22 mi
Rank: #21369 (+76)
25.2M → FINISH
8:45 | 8:36/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:55:06
Pace8:47 /mi
2nd Half
Distance13.11 mi
Time2:03:46
Pace9:27 /mi
📊Positive Split: 7.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:3826:538:4026:53
8:40
-
10K
6.21 mi12:15:0053:158:3526:22
8:30
-0:10
15K
9.32 mi12:41:421:19:578:3526:42
8:36
+0:06
20K
12.43 mi13:10:101:48:258:4428:28
9:10
+0:34
HALF
13.11 mi13:16:511:55:068:476:41
9:49
+0:39
25K
15.53 mi13:39:572:18:128:5423:06
9:32
-0:17
30K
18.64 mi14:09:252:47:409:0029:28
9:30
-0:02
20M
20.00 mi14:22:393:00:549:0313:14
9:45
+0:15
21M
21.00 mi14:34:163:12:319:1111:37
11:37
+1:52
35K
21.75 mi14:40:583:19:139:106:42
8:58
-2:39
23M
23.00 mi14:52:353:30:509:1111:37
9:17
+0:19
24M
24.00 mi15:01:153:39:309:098:40
8:40
-0:37
40K
24.85 mi15:08:393:46:549:087:24
8:40
0:00
25.2M
25.20 mi15:11:523:50:079:083:13
9:20
+0:40
FINISH
26.22 mi15:20:373:58:529:088:45
8:36
-0:44

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

8:30 /mi

Average Pace

9:07 /mi

Slowest Pace

11:37 /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

1:44:46

44% of race

Time at Steady Pace

1:42:34

43% of race

Time at Slower Pace

31:32

13% of race

Average Pace: 9:07 /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 mi11:48:3826:538:4026:53
8:40
#20950
10K
6.21 mi12:15:0053:158:3526:22
8:30
#20569
15K
9.32 mi12:41:421:19:578:3526:42
8:36
#20603
20K
12.43 mi13:10:101:48:258:4428:28
9:10
#21166
HALF
13.11 mi13:16:511:55:068:476:41
9:49
#21461
25K
15.53 mi13:39:572:18:128:5423:06
9:32
#21773
30K
18.64 mi14:09:252:47:409:0029:28
9:30
#21750
20M
20.00 mi14:22:393:00:549:0313:14
9:45
#21765
21M
21.00 mi14:34:163:12:319:1111:37
11:37
#21986
35K
21.75 mi14:40:583:19:139:106:42
8:58
#21904
23M
23.00 mi14:52:353:30:509:1111:37
9:17
#21795
24M
24.00 mi15:01:153:39:309:098:40
8:40
#21661
40K
24.85 mi15:08:393:46:549:087:24
8:40
#21507
25.2M
25.20 mi15:11:523:50:079:083:13
9:20
#21445
FINISH
26.22 mi15:20:373:58:529:088:45
8:36
#21369
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 mi209508142814220657(Top 71%)7936(Top 63%)7936(Top 444%)
10K6.21 mi3.10 mi20569+3817925+2177925+21720276(Top 70%)7742(Top 62%)7742(Top 433%)
15K9.32 mi3.11 mi20603-347928-37928-320657(Top 71%)7936(Top 63%)7936(Top 444%)
20K12.43 mi3.11 mi21166-5638243-3158243-31522614(Top 78%)8965(Top 71%)8965(Top 502%)
HALF13.11 mi0.68 mi21461-2958395-1528395-15225162(Top 87%)10297(Top 82%)10297(Top 577%)
25K15.53 mi2.42 mi21773-3128546-1518546-15123109(Top 80%)9253(Top 74%)9253(Top 518%)
30K18.64 mi3.11 mi21750+238547-18547-121579(Top 74%)8559(Top 68%)8559(Top 479%)
20M20.00 mi1.36 mi21765-158585-388585-3821852(Top 75%)8770(Top 70%)8770(Top 491%)
21M21.00 mi1.00 mi21986-2218709-1248709-12424404(Top 84%)10193(Top 81%)10193(Top 571%)
35K21.75 mi0.75 mi21904+828675+348675+3419888(Top 69%)7901(Top 63%)7901(Top 442%)
23M23.00 mi1.25 mi21795+1098638+378638+3719797(Top 68%)7892(Top 63%)7892(Top 442%)
24M24.00 mi1.00 mi21661+1348569+698569+6917880(Top 62%)6940(Top 55%)6940(Top 389%)
40K24.85 mi0.85 mi21507+1548504+658504+6516658(Top 57%)6347(Top 50%)6347(Top 355%)
25.2M25.20 mi0.35 mi21445+628476+288476+2816600(Top 57%)6318(Top 50%)6318(Top 354%)
FINISH26.22 mi1.02 mi21369+768443+338443+3318634(Top 64%)7375(Top 59%)7375(Top 413%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21
+97ft-345ft

Overall

20657

Females

7936

F45-49

7936

5K→10K

3.1 - 6.2 mi

Top 70%
×5
+79ft-138ft

Overall

20276

Females

7742

F45-49

7742

10K→15K

6.2 - 9.3 mi

Top 71%
×3
+67ft-78ft

Overall

20657

Females

7936

F45-49

7936

15K→20K

9.3 - 12.4 mi

Top 78%
×5
+106ft-86ft

Overall

22614

Females

8965

F45-49

8965

20K→HALF

12.4 - 13.1 mi

Top 87%
×2
+19ft-37ft

Overall

25162

Females

10297

F45-49

10297

HALF→25K

13.1 - 15.5 mi

Top 80%
×4
+66ft-88ft

Overall

23109

Females

9253

F45-49

9253

25K→30K

15.5 - 18.6 mi

Top 74%
×9
+181ft-148ft

Overall

21579

Females

8559

F45-49

8559

30K→20M

18.6 - 20.0 mi

Top 75%
×5
+64ft-50ft

Overall

21852

Females

8770

F45-49

8770

20M→21M

20.0 - 21.0 mi

Top 84%
×8
+106ft-24ft

Overall

24404

Females

10193

F45-49

10193

21M→35K

21.0 - 21.8 mi

Top 69%
×7
+17ft-86ft

Overall

19888

Females

7901

F45-49

7901

35K→23M

21.8 - 23.0 mi

Top 68%
×5
+23ft-63ft

Overall

19797

Females

7892

F45-49

7892

23M→24M

23.0 - 24.0 mi

Top 62%
×6
+12ft-82ft

Overall

17880

Females

6940

F45-49

6940

24M→40K

24.0 - 24.9 mi

Top 57%
×1
+6ft-20ft

Overall

16658

Females

6347

F45-49

6347

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1
+13ft-16ft

Overall

16600

Females

6318

F45-49

6318

25.2M→FINISH

25.2 - 26.2 mi

Top 64%
×2
+22ft-21ft

Overall

18634

Females

7375

F45-49

7375

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1792*
Passed By
1471
Net Change
-419
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20950
5K → 10K528*147+381#20950#20569
10K → 15K182200-34#20569#20603
15K → 20K50200-563#20603#21166
20K → HALF4200-295#21166#21461
HALF → 25K51200-312#21461#21773
25K → 30K173150+23#21773#21750
30K → 20M8297-15#21750#21765
20M → 21M28200-221#21765#21986
21M → 35K9513+82#21986#21904
35K → 23M13627+109#21904#21795
23M → 24M14410+134#21795#21661
24M → 40K1562+154#21661#21507
40K → 25.2M664+62#21507#21445
25.2M → FINISH9721+76#21445#21369
TOTALS1792*1471-419

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Analysis Visualizations

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

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Activity Data

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