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BOSTON MARATHON 2025

Zhu Jinfa

Bib: 14283•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 41%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 43%
Division (M50-54)
#0 / 1996
Top 46%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:36
Rank: #13063
Start → 5K
23:36 | 7:36/mi
10K· 6.21 mi
45:07
Rank: #9993 (+3070)
5K → 10K
21:31 | 6:56/mi
15K· 9.32 mi
1:07:11
Rank: #9394 (+599)
10K → 15K
22:04 | 7:06/mi
20K· 12.43 mi
1:33:07
Rank: #11572 (-2178)
15K → 20K
25:56 | 8:21/mi
Half· 13.11 mi
1:38:07
Rank: #11511 (+61)
20K → Half
5:00 | 7:20/mi
25K· 15.53 mi
1:57:43
Rank: #11980 (-469)
Half → 25K
19:36 | 8:05/mi
30K· 18.64 mi
2:23:32
Rank: #12267 (-287)
25K → 30K
25:49 | 8:19/mi
20M
2:34:39
Rank: #12173 (+94)
30K → 20M
11:07 | 8:11/mi
21M
2:43:29
Rank: #12172 (+1)
20M → 21M
8:50 | 8:50/mi
35K· 21.75 mi
2:49:18
Rank: #12102 (+70)
21M → 35K
5:49 | 7:46/mi
23M
2:59:14
Rank: #11906 (+196)
35K → 23M
9:56 | 7:56/mi
24M
3:07:03
Rank: #11797 (+109)
23M → 24M
7:49 | 7:49/mi
40K· 24.85 mi
3:13:55
Rank: #11699 (+98)
24M → 40K
6:52 | 8:02/mi
25.2M
3:17:03
Rank: #11710 (-11)
40K → 25.2M
3:08 | 9:05/mi
Finish· 26.22 mi
3:24:45
Rank: #11604 (+106)
25.2M → Finish
7:42 | 7:33/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:07
Pace7:29 /mi
2nd Half
Distance13.11 mi
Time1:46:38
Pace8:08 /mi
📊Positive Split: 8.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:4323:367:3623:36
7:36
-
10K
6.21 mi11:16:1445:077:1621:31
6:56
-0:40
15K
9.32 mi11:38:181:07:117:1222:04
7:06
+0:10
20K
12.43 mi12:04:141:33:077:3025:56
8:21
+1:15
Half
13.11 mi12:09:141:38:077:295:00
7:20
-1:01
25K
15.53 mi12:28:501:57:437:3519:36
8:05
+0:45
30K
18.64 mi12:54:392:23:327:4225:49
8:19
+0:14
20M
20.00 mi13:05:462:34:397:4411:07
8:11
-0:08
21M
21.00 mi13:14:362:43:297:478:50
8:50
+0:39
35K
21.75 mi13:20:252:49:187:475:49
7:46
-1:04
23M
23.00 mi13:30:212:59:147:489:56
7:56
+0:10
24M
24.00 mi13:38:103:07:037:487:49
7:49
-0:07
40K
24.85 mi13:45:023:13:557:486:52
8:02
+0:13
25.2M
25.20 mi13:48:103:17:037:493:08
9:05
+1:03
Finish
26.22 mi13:55:523:24:457:497:42
7:33
-1:32

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

6:56 /mi

Average Pace

7:49 /mi

Slowest Pace

9:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:19:53

39% of race

Time at Steady Pace

1:01:09

30% of race

Time at Slower Pace

1:03:43

31% of race

Average Pace: 7:49 /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 mi10:54:4323:367:3623:36
7:36
#13063
10K
6.21 mi11:16:1445:077:1621:31
6:56
#9993
15K
9.32 mi11:38:181:07:117:1222:04
7:06
#9394
20K
12.43 mi12:04:141:33:077:3025:56
8:21
#11572
Half
13.11 mi12:09:141:38:077:295:00
7:20
#11511
25K
15.53 mi12:28:501:57:437:3519:36
8:05
#11980
30K
18.64 mi12:54:392:23:327:4225:49
8:19
#12267
20M
20.00 mi13:05:462:34:397:4411:07
8:11
#12173
21M
21.00 mi13:14:362:43:297:478:50
8:50
#12172
35K
21.75 mi13:20:252:49:187:475:49
7:46
#12102
23M
23.00 mi13:30:212:59:147:489:56
7:56
#11906
24M
24.00 mi13:38:103:07:037:487:49
7:49
#11797
40K
24.85 mi13:45:023:13:557:486:52
8:02
#11699
25.2M
25.20 mi13:48:103:17:037:493:08
9:05
#11710
Finish
26.22 mi13:55:523:24:457:497:42
7:33
#11604
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi13063967496748355(Top 29%)7155(Top 44%)7155(Top 358%)
10K6.21 mi3.10 mi9993+30708165+15098165+15097439(Top 26%)6596(Top 41%)6596(Top 330%)
15K9.32 mi3.11 mi9394+5997816+3497816+3498355(Top 29%)7155(Top 44%)7155(Top 358%)
20K12.43 mi3.11 mi11572-21788887-10718887-107117192(Top 61%)11258(Top 70%)11258(Top 564%)
Half13.11 mi0.68 mi11511+618862+258862+2510247(Top 36%)8163(Top 51%)8163(Top 409%)
25K15.53 mi2.42 mi11980-4699039-1779039-17714502(Top 51%)9970(Top 62%)9970(Top 499%)
30K18.64 mi3.11 mi12267-2879095-569095-5613556(Top 48%)9394(Top 58%)9394(Top 471%)
20M20.00 mi1.36 mi12173+949020+759020+7511669(Top 41%)8359(Top 52%)8359(Top 419%)
21M21.00 mi1.00 mi12172+18974+468974+4612476(Top 44%)8594(Top 53%)8594(Top 431%)
35K21.75 mi0.75 mi12102+708915+598915+5910605(Top 37%)7674(Top 48%)7674(Top 384%)
23M23.00 mi1.25 mi11906+1968787+1288787+1289532(Top 34%)7003(Top 43%)7003(Top 351%)
24M24.00 mi1.00 mi11797+1098697+908697+909915(Top 35%)7124(Top 44%)7124(Top 357%)
40K24.85 mi0.85 mi11699+988623+748623+7410413(Top 37%)7259(Top 45%)7259(Top 364%)
25.2M25.20 mi0.35 mi11710-118613+108613+1012216(Top 43%)8100(Top 50%)8100(Top 406%)
Finish26.22 mi1.02 mi11604+1068517+968517+969592(Top 34%)6764(Top 42%)6764(Top 339%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 29%
×21stories
+97ft-345ft

Overall

8355

Males

7155

M50-54

7155

5K→10K

3.1 - 6.2 mi

Top 26%
×5stories
+79ft-138ft

Overall

7439

Males

6596

M50-54

6596

10K→15K

6.2 - 9.3 mi

Top 29%
×3stories
+67ft-78ft

Overall

8355

Males

7155

M50-54

7155

15K→20K

9.3 - 12.4 mi

Top 61%
×5stories
+106ft-86ft

Overall

17192

Males

11258

M50-54

11258

20K→Half

12.4 - 13.1 mi

Top 36%
×2stories
+19ft-37ft

Overall

10247

Males

8163

M50-54

8163

Half→25K

13.1 - 15.5 mi

Top 51%
×4stories
+66ft-88ft

Overall

14502

Males

9970

M50-54

9970

25K→30K

15.5 - 18.6 mi

Top 48%
×9stories
+181ft-148ft

Overall

13556

Males

9394

M50-54

9394

30K→20M

18.6 - 20.0 mi

Top 41%
×5stories
+64ft-50ft

Overall

11669

Males

8359

M50-54

8359

20M→21M

20.0 - 21.0 mi

Top 44%
×8stories
+106ft-24ft

Overall

12476

Males

8594

M50-54

8594

21M→35K

21.0 - 21.8 mi

Top 37%
×7stories
+17ft-86ft

Overall

10605

Males

7674

M50-54

7674

35K→23M

21.8 - 23.0 mi

Top 34%
×5stories
+23ft-63ft

Overall

9532

Males

7003

M50-54

7003

23M→24M

23.0 - 24.0 mi

Top 35%
×6stories
+12ft-82ft

Overall

9915

Males

7124

M50-54

7124

24M→40K

24.0 - 24.9 mi

Top 37%
×1story
+6ft-20ft

Overall

10413

Males

7259

M50-54

7259

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

12216

Males

8100

M50-54

8100

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2stories
+22ft-21ft

Overall

9592

Males

6764

M50-54

6764

Passing Analysis

Category:
Athletes Passed
4991*
Passed By
3530
Net Change
+1459
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13063
5K → 10K3071*1+3070#13063#9993
10K → 15K608*9+599#9993#9394
15K → 20K102186-2178#9394#11572
20K → Half676+61#11572#11511
Half → 25K69538-469#11511#11980
25K → 30K157444-287#11980#12267
30K → 20M15561+94#12267#12173
20M → 21M106105+1#12173#12172
21M → 35K9626+70#12172#12102
35K → 23M21519+196#12102#11906
23M → 24M13324+109#11906#11797
24M → 40K12830+98#11797#11699
40K → 25.2M2839-11#11699#11710
25.2M → Finish14842+106#11710#11604
TOTALS4991*3530+1459

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

📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing