All Results|Race Analytics|Course|Contact

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Chewei Chang

Bib: 3662 •M •Age: N/A

Boston Marathon logo
0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 29021
Top 44%
Gender (Male)
#0 / 16340
Age Group (M18-39)
#0 / 5723
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
20:45
3.11 mi
Rank: #5690
Start → 5K
20:45 | 6:41/mi
10K
41:42
6.21 mi
Rank: #6027 (-337)
5K → 10K
20:57 | 6:45/mi
15K
1:02:40
9.32 mi
Rank: #6071 (-44)
10K → 15K
20:58 | 6:45/mi
20K
1:23:47
12.43 mi
Rank: #6031 (+40)
15K → 20K
21:07 | 6:48/mi
HALF
1:28:19
13.11 mi
Rank: #6006 (+25)
20K → HALF
4:32 | 6:40/mi
25K
1:44:50
15.53 mi
Rank: #5971 (+35)
HALF → 25K
16:31 | 6:49/mi
30K
2:07:51
18.64 mi
Rank: #6600 (-629)
25K → 30K
23:01 | 7:25/mi
20M
2:18:45
20.00 mi
Rank: #7058 (-458)
30K → 20M
10:54 | 8:02/mi
21M
2:27:23
21.00 mi
Rank: #7361 (-303)
20M → 21M
8:38 | 8:38/mi
35K
2:33:27
21.75 mi
Rank: #7595 (-234)
21M → 35K
6:04 | 8:07/mi
23M
2:45:52
23.00 mi
Rank: #8596 (-1001)
35K → 23M
12:25 | 9:56/mi
24M
2:59:34
24.00 mi
Rank: #10808 (-2212)
23M → 24M
13:42 | 13:42/mi
40K
3:09:21
24.85 mi
Rank: #11877 (-1069)
24M → 40K
9:47 | 11:27/mi
25.2M
3:13:01
25.20 mi
Rank: #12114 (-237)
40K → 25.2M
3:40 | 10:38/mi
FINISH
3:22:56
26.22 mi
Rank: #12736 (-622)
25.2M → FINISH
9:55 | 9:44/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:28:19
Pace6:45 /mi
2nd Half
Distance13.11 mi
Time1:54:37
Pace8:45 /mi
📊Positive Split: 29.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:36:0020:456:4120:45
6:41
-
10K
6.21 mi10:56:5741:426:4320:57
6:45
+0:04
15K
9.32 mi11:17:551:02:406:4420:58
6:45
0:00
20K
12.43 mi11:39:021:23:476:4521:07
6:48
+0:03
HALF
13.11 mi11:43:341:28:196:454:32
6:40
-0:08
25K
15.53 mi12:00:051:44:506:4516:31
6:49
+0:09
30K
18.64 mi12:23:062:07:516:5223:01
7:25
+0:36
20M
20.00 mi12:34:002:18:456:5710:54
8:02
+0:37
21M
21.00 mi12:42:382:27:237:028:38
8:38
+0:36
35K
21.75 mi12:48:422:33:277:046:04
8:07
-0:31
23M
23.00 mi13:01:072:45:527:1312:25
9:56
+1:49
24M
24.00 mi13:14:492:59:347:2913:42
13:42
+3:46
40K
24.85 mi13:24:363:09:217:389:47
11:27
-2:15
25.2M
25.20 mi13:28:163:13:017:403:40
10:38
-0:49
FINISH
26.22 mi13:38:113:22:567:459:55
9:44
-0:54

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

6:40 /mi

Average Pace

7:45 /mi

Slowest Pace

13:42 /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

1:44:50

52% of race

Time at Steady Pace

48:37

24% of race

Time at Slower Pace

49:29

24% of race

Average Pace: 7:44 /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 mi10:36:0020:456:4120:45
6:41
#5690
10K
6.21 mi10:56:5741:426:4320:57
6:45
#6027
15K
9.32 mi11:17:551:02:406:4420:58
6:45
#6071
20K
12.43 mi11:39:021:23:476:4521:07
6:48
#6031
HALF
13.11 mi11:43:341:28:196:454:32
6:40
#6006
25K
15.53 mi12:00:051:44:506:4516:31
6:49
#5971
30K
18.64 mi12:23:062:07:516:5223:01
7:25
#6600
20M
20.00 mi12:34:002:18:456:5710:54
8:02
#7058
21M
21.00 mi12:42:382:27:237:028:38
8:38
#7361
35K
21.75 mi12:48:422:33:277:046:04
8:07
#7595
23M
23.00 mi13:01:072:45:527:1312:25
9:56
#8596
24M
24.00 mi13:14:492:59:347:2913:42
13:42
#10808
40K
24.85 mi13:24:363:09:217:389:47
11:27
#11877
25.2M
25.20 mi13:28:163:13:017:403:40
10:38
#12114
FINISH
26.22 mi13:38:113:22:567:459:55
9:44
#12736
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5690523452346317(Top 22%)5677(Top 35%)5677(Top 99%)
10K6.21 mi3.10 mi6027-3375500-2665500-2666411(Top 22%)5775(Top 35%)5775(Top 101%)
15K9.32 mi3.11 mi6071-445530-305530-306317(Top 22%)5677(Top 35%)5677(Top 99%)
20K12.43 mi3.11 mi6031+405484+465484+466181(Top 21%)5551(Top 34%)5551(Top 97%)
HALF13.11 mi0.68 mi6006+255463+215463+215759(Top 20%)5237(Top 32%)5237(Top 92%)
25K15.53 mi2.42 mi5971+355428+355428+355918(Top 20%)5309(Top 32%)5309(Top 93%)
30K18.64 mi3.11 mi6600-6295873-4455873-4458926(Top 31%)7125(Top 44%)7125(Top 124%)
20M20.00 mi1.36 mi7058-4586188-3156188-31512987(Top 45%)9005(Top 55%)9005(Top 157%)
21M21.00 mi1.00 mi7361-3036382-1946382-19413930(Top 48%)9326(Top 57%)9326(Top 163%)
35K21.75 mi0.75 mi7595-2346530-1486530-14815164(Top 52%)9823(Top 60%)9823(Top 172%)
23M23.00 mi1.25 mi8596-10017075-5457075-54521891(Top 75%)12863(Top 79%)12863(Top 225%)
24M24.00 mi1.00 mi10808-22128215-11408215-114028167(Top 97%)15865(Top 97%)15865(Top 277%)
40K24.85 mi0.85 mi11877-10698683-4688683-46825004(Top 86%)14277(Top 87%)14277(Top 249%)
25.2M25.20 mi0.35 mi12114-2378768-858768-8521396(Top 74%)12526(Top 77%)12526(Top 219%)
FINISH26.22 mi1.02 mi12736-6229022-2549022-25423066(Top 79%)13335(Top 82%)13335(Top 233%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 22%
×21
+97ft-345ft

Overall

6317

Males

5677

M18-39

5677

5K→10K

3.1 - 6.2 mi

Top 22%
×5
+79ft-138ft

Overall

6411

Males

5775

M18-39

5775

10K→15K

6.2 - 9.3 mi

Top 22%
×3
+67ft-78ft

Overall

6317

Males

5677

M18-39

5677

15K→20K

9.3 - 12.4 mi

Top 21%
×5
+106ft-86ft

Overall

6181

Males

5551

M18-39

5551

20K→HALF

12.4 - 13.1 mi

Top 20%
×2
+19ft-37ft

Overall

5759

Males

5237

M18-39

5237

HALF→25K

13.1 - 15.5 mi

Top 20%
×4
+66ft-88ft

Overall

5918

Males

5309

M18-39

5309

25K→30K

15.5 - 18.6 mi

Top 31%
×9
+181ft-148ft

Overall

8926

Males

7125

M18-39

7125

30K→20M

18.6 - 20.0 mi

Top 45%
×5
+64ft-50ft

Overall

12987

Males

9005

M18-39

9005

20M→21M

20.0 - 21.0 mi

Top 48%
×8
+106ft-24ft

Overall

13930

Males

9326

M18-39

9326

21M→35K

21.0 - 21.8 mi

Top 52%
×7
+17ft-86ft

Overall

15164

Males

9823

M18-39

9823

35K→23M

21.8 - 23.0 mi

Top 75%
×5
+23ft-63ft

Overall

21891

Males

12863

M18-39

12863

23M→24M

23.0 - 24.0 mi

Top 97%
×6
+12ft-82ft

Overall

28167

Males

15865

M18-39

15865

24M→40K

24.0 - 24.9 mi

Top 86%
×1
+6ft-20ft

Overall

25004

Males

14277

M18-39

14277

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1
+13ft-16ft

Overall

21396

Males

12526

M18-39

12526

25.2M→FINISH

25.2 - 26.2 mi

Top 79%
×2
+22ft-21ft

Overall

23066

Males

13335

M18-39

13335

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
614
Passed By
2362
Net Change
-7046
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5690
5K → 10K80200-337#5690#6027
10K → 15K119163-44#6027#6071
15K → 20K157117+40#6071#6031
20K → HALF338+25#6031#6006
HALF → 25K10974+35#6006#5971
25K → 30K44200-629#5971#6600
30K → 20M14200-458#6600#7058
20M → 21M18200-303#7058#7361
21M → 35K14200-234#7361#7595
35K → 23M7200-1001#7595#8596
23M → 24M1200-2212#8596#10808
24M → 40K4200-1069#10808#11877
40K → 25.2M5200-237#11877#12114
25.2M → FINISH9200-622#12114#12736
TOTALS6142362-7046
📊

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...

AI Key Insights

Powered by MyRace AI

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