Boston Marathon logo
BOSTON MARATHON 2025

Yuejun Zhang

Bib: 3720•M

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 12%
Gender (Male)
#0 / 16105
Top 20%
Division (M18-39)
#0 / 5642
Top 43%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:36
Rank: #4856
Start → 5K
20:36 | 6:38/mi
10K· 6.21 mi
41:16
Rank: #4837 (+19)
5K → 10K
20:40 | 6:39/mi
15K· 9.32 mi
1:01:46
Rank: #4601 (+236)
10K → 15K
20:30 | 6:36/mi
20K· 12.43 mi
1:22:20
Rank: #4370 (+231)
15K → 20K
20:34 | 6:37/mi
Half· 13.11 mi
1:26:44
Rank: #4300 (+70)
20K → Half
4:24 | 6:27/mi
25K· 15.53 mi
1:42:47
Rank: #4119 (+181)
Half → 25K
16:03 | 6:37/mi
30K· 18.64 mi
2:03:41
Rank: #3860 (+259)
25K → 30K
20:54 | 6:44/mi
20M
2:13:01
Rank: #3776 (+84)
30K → 20M
9:20 | 6:52/mi
21M
2:20:14
Rank: #3714 (+62)
20M → 21M
7:13 | 7:13/mi
35K· 21.75 mi
2:25:07
Rank: #3654 (+60)
21M → 35K
4:53 | 6:32/mi
23M
2:33:43
Rank: #3583 (+71)
35K → 23M
8:36 | 6:52/mi
24M
2:40:25
Rank: #3493 (+90)
23M → 24M
6:42 | 6:42/mi
40K· 24.85 mi
2:46:14
Rank: #3441 (+52)
24M → 40K
5:49 | 6:48/mi
25.2M
2:48:52
Rank: #3425 (+16)
40K → 25.2M
2:38 | 7:38/mi
Finish· 26.22 mi
2:55:49
Rank: #3437 (-12)
25.2M → Finish
6:57 | 6:49/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
Time1:26:44
Pace6:37 /mi
2nd Half
Distance13.11 mi
Time1:29:05
Pace6:48 /mi
📊Positive Split: 2.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:1220:366:3820:36
6:38
-
10K
6.21 mi10:44:5241:166:3820:40
6:39
+0:01
15K
9.32 mi11:05:221:01:466:3820:30
6:36
-0:03
20K
12.43 mi11:25:561:22:206:3820:34
6:37
+0:01
Half
13.11 mi11:30:201:26:446:374:24
6:27
-0:10
25K
15.53 mi11:46:231:42:476:3716:03
6:37
+0:10
30K
18.64 mi12:07:172:03:416:3820:54
6:44
+0:07
20M
20.00 mi12:16:372:13:016:399:20
6:52
+0:08
21M
21.00 mi12:23:502:20:146:417:13
7:13
+0:21
35K
21.75 mi12:28:432:25:076:404:53
6:32
-0:41
23M
23.00 mi12:37:192:33:436:418:36
6:52
+0:20
24M
24.00 mi12:44:012:40:256:416:42
6:42
-0:10
40K
24.85 mi12:49:502:46:146:415:49
6:48
+0:06
25.2M
25.20 mi12:52:282:48:526:422:38
7:38
+0:50
Finish
26.22 mi12:59:252:55:496:436:57
6:49
-0:49

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

6:27 /mi

Average Pace

6:43 /mi

Slowest Pace

7:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:45:58

94% of race

Time at Steady Pace

7:13

4% of race

Time at Slower Pace

2:38

1% of race

Average Pace: 6:42 /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 mi10:24:1220:366:3820:36
6:38
#4856
10K
6.21 mi10:44:5241:166:3820:40
6:39
#4837
15K
9.32 mi11:05:221:01:466:3820:30
6:36
#4601
20K
12.43 mi11:25:561:22:206:3820:34
6:37
#4370
Half
13.11 mi11:30:201:26:446:374:24
6:27
#4300
25K
15.53 mi11:46:231:42:476:3716:03
6:37
#4119
30K
18.64 mi12:07:172:03:416:3820:54
6:44
#3860
20M
20.00 mi12:16:372:13:016:399:20
6:52
#3776
21M
21.00 mi12:23:502:20:146:417:13
7:13
#3714
35K
21.75 mi12:28:432:25:076:404:53
6:32
#3654
23M
23.00 mi12:37:192:33:436:418:36
6:52
#3583
24M
24.00 mi12:44:012:40:256:416:42
6:42
#3493
40K
24.85 mi12:49:502:46:146:415:49
6:48
#3441
25.2M
25.20 mi12:52:282:48:526:422:38
7:38
#3425
Finish
26.22 mi12:59:252:55:496:436:57
6:49
#3437
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4856454645464221(Top 15%)3970(Top 25%)3970(Top 70%)
10K6.21 mi3.10 mi4837+194522+244522+244893(Top 17%)4569(Top 28%)4569(Top 81%)
15K9.32 mi3.11 mi4601+2364313+2094313+2094221(Top 15%)3970(Top 25%)3970(Top 70%)
20K12.43 mi3.11 mi4370+2314104+2094104+2093834(Top 13%)3616(Top 22%)3616(Top 64%)
Half13.11 mi0.68 mi4300+704039+654039+653408(Top 12%)3234(Top 20%)3234(Top 57%)
25K15.53 mi2.42 mi4119+1813871+1683871+1683597(Top 13%)3389(Top 21%)3389(Top 60%)
30K18.64 mi3.11 mi3860+2593635+2363635+2363017(Top 11%)2837(Top 18%)2837(Top 50%)
20M20.00 mi1.36 mi3776+843555+803555+803333(Top 12%)3084(Top 19%)3084(Top 55%)
21M21.00 mi1.00 mi3714+623492+633492+633224(Top 11%)2972(Top 18%)2972(Top 53%)
35K21.75 mi0.75 mi3654+603435+573435+572638(Top 9%)2457(Top 15%)2457(Top 44%)
23M23.00 mi1.25 mi3583+713365+703365+703071(Top 11%)2810(Top 17%)2810(Top 50%)
24M24.00 mi1.00 mi3493+903278+873278+873000(Top 11%)2724(Top 17%)2724(Top 48%)
40K24.85 mi0.85 mi3441+523227+513227+512875(Top 10%)2601(Top 16%)2601(Top 46%)
25.2M25.20 mi0.35 mi3425+163208+193208+194050(Top 14%)3466(Top 22%)3466(Top 61%)
Finish26.22 mi1.02 mi3437-123213-53213-54624(Top 16%)3874(Top 24%)3874(Top 69%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 15%
×21stories
+97ft-345ft

Overall

4221

Males

3970

M18-39

3970

5K→10K

3.1 - 6.2 mi

Top 17%
×5stories
+79ft-138ft

Overall

4893

Males

4569

M18-39

4569

10K→15K

6.2 - 9.3 mi

Top 15%
×3stories
+67ft-78ft

Overall

4221

Males

3970

M18-39

3970

15K→20K

9.3 - 12.4 mi

Top 13%
×5stories
+106ft-86ft

Overall

3834

Males

3616

M18-39

3616

20K→Half

12.4 - 13.1 mi

Top 12%
×2stories
+19ft-37ft

Overall

3408

Males

3234

M18-39

3234

Half→25K

13.1 - 15.5 mi

Top 13%
×4stories
+66ft-88ft

Overall

3597

Males

3389

M18-39

3389

25K→30K

15.5 - 18.6 mi

Top 11%
×9stories
+181ft-148ft

Overall

3017

Males

2837

M18-39

2837

30K→20M

18.6 - 20.0 mi

Top 12%
×5stories
+64ft-50ft

Overall

3333

Males

3084

M18-39

3084

20M→21M

20.0 - 21.0 mi

Top 11%
×8stories
+106ft-24ft

Overall

3224

Males

2972

M18-39

2972

21M→35K

21.0 - 21.8 mi

Top 9%
×7stories
+17ft-86ft

Overall

2638

Males

2457

M18-39

2457

35K→23M

21.8 - 23.0 mi

Top 11%
×5stories
+23ft-63ft

Overall

3071

Males

2810

M18-39

2810

23M→24M

23.0 - 24.0 mi

Top 11%
×6stories
+12ft-82ft

Overall

3000

Males

2724

M18-39

2724

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2875

Males

2601

M18-39

2601

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

4050

Males

3466

M18-39

3466

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2stories
+22ft-21ft

Overall

4624

Males

3874

M18-39

3874

Passing Analysis

Category:
Athletes Passed
1816
Passed By
397
Net Change
+1419
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4856
5K → 10K177158+19#4856#4837
10K → 15K26024+236#4837#4601
15K → 20K24918+231#4601#4370
20K → Half711+70#4370#4300
Half → 25K19817+181#4300#4119
25K → 30K27213+259#4119#3860
30K → 20M10420+84#3860#3776
20M → 21M8119+62#3776#3714
21M → 35K688+60#3714#3654
35K → 23M9726+71#3654#3583
23M → 24M999+90#3583#3493
24M → 40K7119+52#3493#3441
40K → 25.2M2610+16#3441#3425
25.2M → Finish4355-12#3425#3437
TOTALS1816397+1419
📊

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