Boston Marathon logo
BOSTON MARATHON 2025

Zhenhua Wu

Bib: 4128•M

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 13%
Gender (Male)
#0 / 16105
Top 21%
Division (M18-39)
#0 / 5642
Top 45%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:57
Rank: #3265
Start → 5K
19:57 | 6:25/mi
10K· 6.21 mi
40:24
Rank: #3785 (-520)
5K → 10K
20:27 | 6:35/mi
15K· 9.32 mi
1:00:59
Rank: #3975 (-190)
10K → 15K
20:35 | 6:38/mi
20K· 12.43 mi
1:21:45
Rank: #4001 (-26)
15K → 20K
20:46 | 6:41/mi
Half· 13.11 mi
1:26:18
Rank: #4033 (-32)
20K → Half
4:33 | 6:40/mi
25K· 15.53 mi
1:42:37
Rank: #4028 (+5)
Half → 25K
16:19 | 6:44/mi
30K· 18.64 mi
2:04:05
Rank: #3986 (+42)
25K → 30K
21:28 | 6:55/mi
20M
2:13:34
Rank: #3960 (+26)
30K → 20M
9:29 | 6:59/mi
21M
2:21:04
Rank: #3968 (-8)
20M → 21M
7:30 | 7:30/mi
35K· 21.75 mi
2:26:08
Rank: #3937 (+31)
21M → 35K
5:04 | 6:46/mi
23M
2:34:48
Rank: #3880 (+57)
35K → 23M
8:40 | 6:55/mi
24M
2:41:31
Rank: #3813 (+67)
23M → 24M
6:43 | 6:43/mi
40K· 24.85 mi
2:47:19
Rank: #3746 (+67)
24M → 40K
5:48 | 6:47/mi
25.2M
2:49:53
Rank: #3713 (+33)
40K → 25.2M
2:34 | 7:27/mi
Finish· 26.22 mi
2:56:38
Rank: #3644 (+69)
25.2M → Finish
6:45 | 6:37/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:18
Pace6:35 /mi
2nd Half
Distance13.11 mi
Time1:30:20
Pace6:53 /mi
📊Positive Split: 4.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:0519:576:2519:57
6:25
-
10K
6.21 mi10:42:3240:246:3020:27
6:35
+0:10
15K
9.32 mi11:03:071:00:596:3320:35
6:38
+0:03
20K
12.43 mi11:23:531:21:456:3520:46
6:41
+0:03
Half
13.11 mi11:28:261:26:186:354:33
6:40
-0:01
25K
15.53 mi11:44:451:42:376:3616:19
6:44
+0:04
30K
18.64 mi12:06:132:04:056:3921:28
6:55
+0:11
20M
20.00 mi12:15:422:13:346:419:29
6:59
+0:04
21M
21.00 mi12:23:122:21:046:437:30
7:30
+0:31
35K
21.75 mi12:28:162:26:086:435:04
6:46
-0:44
23M
23.00 mi12:36:562:34:486:448:40
6:55
+0:09
24M
24.00 mi12:43:392:41:316:446:43
6:43
-0:12
40K
24.85 mi12:49:272:47:196:445:48
6:47
+0:04
25.2M
25.20 mi12:52:012:49:536:442:34
7:27
+0:40
Finish
26.22 mi12:58:462:56:386:456:45
6:37
-0:50

Checkpoints & Pacing

📈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

6:25 /mi

Average Pace

6:45 /mi

Slowest Pace

7:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:46:34

94% of race

Time at Steady Pace

10:04

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:44 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:22:0519:576:2519:57
6:25
#3265
10K
6.21 mi10:42:3240:246:3020:27
6:35
#3785
15K
9.32 mi11:03:071:00:596:3320:35
6:38
#3975
20K
12.43 mi11:23:531:21:456:3520:46
6:41
#4001
Half
13.11 mi11:28:261:26:186:354:33
6:40
#4033
25K
15.53 mi11:44:451:42:376:3616:19
6:44
#4028
30K
18.64 mi12:06:132:04:056:3921:28
6:55
#3986
20M
20.00 mi12:15:422:13:346:419:29
6:59
#3960
21M
21.00 mi12:23:122:21:046:437:30
7:30
#3968
35K
21.75 mi12:28:162:26:086:435:04
6:46
#3937
23M
23.00 mi12:36:562:34:486:448:40
6:55
#3880
24M
24.00 mi12:43:392:41:316:446:43
6:43
#3813
40K
24.85 mi12:49:272:47:196:445:48
6:47
#3746
25.2M
25.20 mi12:52:012:49:536:442:34
7:27
#3713
Finish
26.22 mi12:58:462:56:386:456:45
6:37
#3644
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3265310031004428(Top 16%)4149(Top 26%)4149(Top 74%)
10K6.21 mi3.10 mi3785-5203578-4783578-4784302(Top 15%)4040(Top 25%)4040(Top 72%)
15K9.32 mi3.11 mi3975-1903746-1683746-1684428(Top 16%)4149(Top 26%)4149(Top 74%)
20K12.43 mi3.11 mi4001-263768-223768-224279(Top 15%)4002(Top 25%)4002(Top 71%)
Half13.11 mi0.68 mi4033-323795-273795-274921(Top 17%)4550(Top 28%)4550(Top 81%)
25K15.53 mi2.42 mi4028+53788+73788+74325(Top 15%)4007(Top 25%)4007(Top 71%)
30K18.64 mi3.11 mi3986+423746+423746+424123(Top 15%)3790(Top 24%)3790(Top 67%)
20M20.00 mi1.36 mi3960+263717+293717+293955(Top 14%)3623(Top 22%)3623(Top 64%)
21M21.00 mi1.00 mi3968-8371737174583(Top 16%)4053(Top 25%)4053(Top 72%)
35K21.75 mi0.75 mi3937+313685+323685+323898(Top 14%)3498(Top 22%)3498(Top 62%)
23M23.00 mi1.25 mi3880+573623+623623+623314(Top 12%)3012(Top 19%)3012(Top 53%)
24M24.00 mi1.00 mi3813+673559+643559+643042(Top 11%)2755(Top 17%)2755(Top 49%)
40K24.85 mi0.85 mi3746+673494+653494+652750(Top 10%)2494(Top 15%)2494(Top 44%)
25.2M25.20 mi0.35 mi3713+333459+353459+353109(Top 11%)2750(Top 17%)2750(Top 49%)
Finish26.22 mi1.02 mi3644+693392+673392+673437(Top 12%)3006(Top 19%)3006(Top 53%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4428

Males

4149

M18-39

4149

5K→10K

3.1 - 6.2 mi

Top 15%
×5stories
+79ft-138ft

Overall

4302

Males

4040

M18-39

4040

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4428

Males

4149

M18-39

4149

15K→20K

9.3 - 12.4 mi

Top 15%
×5stories
+106ft-86ft

Overall

4279

Males

4002

M18-39

4002

20K→Half

12.4 - 13.1 mi

Top 17%
×2stories
+19ft-37ft

Overall

4921

Males

4550

M18-39

4550

Half→25K

13.1 - 15.5 mi

Top 15%
×4stories
+66ft-88ft

Overall

4325

Males

4007

M18-39

4007

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

4123

Males

3790

M18-39

3790

30K→20M

18.6 - 20.0 mi

Top 14%
×5stories
+64ft-50ft

Overall

3955

Males

3623

M18-39

3623

20M→21M

20.0 - 21.0 mi

Top 16%
×8stories
+106ft-24ft

Overall

4583

Males

4053

M18-39

4053

21M→35K

21.0 - 21.8 mi

Top 14%
×7stories
+17ft-86ft

Overall

3898

Males

3498

M18-39

3498

35K→23M

21.8 - 23.0 mi

Top 12%
×5stories
+23ft-63ft

Overall

3314

Males

3012

M18-39

3012

23M→24M

23.0 - 24.0 mi

Top 11%
×6stories
+12ft-82ft

Overall

3042

Males

2755

M18-39

2755

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2750

Males

2494

M18-39

2494

40K→25.2M

24.9 - 25.2 mi

Top 11%
×1story
+13ft-16ft

Overall

3109

Males

2750

M18-39

2750

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2stories
+22ft-21ft

Overall

3437

Males

3006

M18-39

3006

Passing Analysis

Category:
Athletes Passed
951
Passed By
1330
Net Change
-379
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3265
5K → 10K14534-520#3265#3785
10K → 15K45235-190#3785#3975
15K → 20K86112-26#3975#4001
20K → Half638-32#4001#4033
Half → 25K8479+5#4033#4028
25K → 30K148106+42#4028#3986
30K → 20M6640+26#3986#3960
20M → 21M6371-8#3960#3968
21M → 35K5120+31#3968#3937
35K → 23M9336+57#3937#3880
23M → 24M8215+67#3880#3813
24M → 40K7710+67#3813#3746
40K → 25.2M407+33#3746#3713
25.2M → Finish9627+69#3713#3644
TOTALS9511330-379
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

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

.gpx files up to 10MB

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

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing