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BOSTON MARATHON 2025

Jingzhou Zhang

Bib: 14319•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 49%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M55-59)
#0 / 1648
Top 40%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:36/mi
23:37
↑ 97↓ 3451.5%
10K· 6.21 mi
7:54/mi
48:10
↑ 79↓ 1380.4%
15K· 9.32 mi
8:00/mi
1:13:02
↑ 67↓ 78
20K· 12.43 mi
8:18/mi
1:38:50
↑ 106↓ 860.1%
Half· 13.11 mi
7:52/mi
1:44:12
↑ 19↓ 370.5%
25K· 15.53 mi
7:53/mi
2:03:20
↑ 66↓ 880.2%
30K· 18.64 mi
8:37/mi
2:30:07
↑ 181↓ 1480.2%
20M
8:48/mi
2:42:04
↑ 64↓ 500.2%
21M
9:26/mi
2:51:30
↑ 106↓ 241.6%
35K· 21.75 mi
7:37/mi
2:57:12
↑ 17↓ 861.7%
23M
7:32/mi
3:06:38
↑ 23↓ 630.6%
24M
7:18/mi
3:13:56
↓ 821.3%
40K· 24.85 mi
7:48/mi
3:20:36
↓ 200.3%
25.2M
9:08/mi
3:23:45
↑ 13↓ 160.2%
Finish· 26.22 mi
8:18/mi
3:32:12
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:12
Pace7:57 /mi
2nd Half
Distance13.11 mi
Time1:48:00
Pace8:14 /mi
📊Positive Split: 3.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:1523:377:3623:37
7:36
-
10K
6.21 mi11:19:4848:107:4524:33
7:54
+0:18
15K
9.32 mi11:44:401:13:027:5024:52
8:00
+0:06
20K
12.43 mi12:10:281:38:507:5725:48
8:18
+0:18
Half
13.11 mi12:15:501:44:127:575:22
7:52
-0:26
25K
15.53 mi12:34:582:03:207:5619:08
7:53
+0:01
30K
18.64 mi13:01:452:30:078:0326:47
8:37
+0:44
20M
20.00 mi13:13:422:42:048:0611:57
8:48
+0:11
21M
21.00 mi13:23:082:51:308:109:26
9:26
+0:38
35K
21.75 mi13:28:502:57:128:095:42
7:37
-1:49
23M
23.00 mi13:38:163:06:388:079:26
7:32
-0:05
24M
24.00 mi13:45:343:13:568:057:18
7:18
-0:14
40K
24.85 mi13:52:143:20:368:046:40
7:48
+0:30
25.2M
25.20 mi13:55:233:23:458:053:09
9:08
+1:20
Finish
26.22 mi14:03:503:32:128:068:27
8:18
-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

7:18 /mi

Average Pace

8:06 /mi

Slowest Pace

9:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

40:21

19% of race

Time at Steady Pace

1:26:17

41% of race

Time at Slower Pace

1:25:34

40% of race

Average Pace: 8:06 /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 mi10:55:1523:377:3623:37
7:36
#13121
10K
6.21 mi11:19:4848:107:4524:33
7:54
#14329
15K
9.32 mi11:44:401:13:027:5024:52
8:00
#14941
20K
12.43 mi12:10:281:38:507:5725:48
8:18
#15567
Half
13.11 mi12:15:501:44:127:575:22
7:52
#15515
25K
15.53 mi12:34:582:03:207:5619:08
7:53
#15072
30K
18.64 mi13:01:452:30:078:0326:47
8:37
#15153
20M
20.00 mi13:13:422:42:048:0611:57
8:48
#15165
21M
21.00 mi13:23:082:51:308:109:26
9:26
#15144
35K
21.75 mi13:28:502:57:128:095:42
7:37
#14923
23M
23.00 mi13:38:163:06:388:079:26
7:32
#14425
24M
24.00 mi13:45:343:13:568:057:18
7:18
#14061
40K
24.85 mi13:52:143:20:368:046:40
7:48
#13810
25.2M
25.20 mi13:55:233:23:458:053:09
9:08
#13775
Finish
26.22 mi14:03:503:32:128:068:27
8:18
#13802
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi131219698969816063(Top 57%)10836(Top 67%)10836(Top 658%)
10K6.21 mi3.10 mi14329-120810150-45210150-45215664(Top 55%)10694(Top 66%)10694(Top 649%)
15K9.32 mi3.11 mi14941-61210376-22610376-22616063(Top 57%)10836(Top 67%)10836(Top 658%)
20K12.43 mi3.11 mi15567-62610616-24010616-24016948(Top 60%)11151(Top 69%)11151(Top 677%)
Half13.11 mi0.68 mi15515+5210599+1710599+1714748(Top 52%)10223(Top 63%)10223(Top 620%)
25K15.53 mi2.42 mi15072+44310377+22210377+22213028(Top 46%)9302(Top 58%)9302(Top 564%)
30K18.64 mi3.11 mi15153-8110357+2010357+2015496(Top 55%)10279(Top 64%)10279(Top 624%)
20M20.00 mi1.36 mi15165-1210326+3110326+3115603(Top 55%)10195(Top 63%)10195(Top 619%)
21M21.00 mi1.00 mi15144+2110294+3210294+3215761(Top 55%)10134(Top 63%)10134(Top 615%)
35K21.75 mi0.75 mi14923+22110186+10810186+1089471(Top 33%)7114(Top 44%)7114(Top 432%)
23M23.00 mi1.25 mi14425+4989933+2539933+2536832(Top 24%)5499(Top 34%)5499(Top 334%)
24M24.00 mi1.00 mi14061+3649724+2099724+2096431(Top 23%)5186(Top 32%)5186(Top 315%)
40K24.85 mi0.85 mi13810+2519583+1419583+1418745(Top 31%)6402(Top 40%)6402(Top 388%)
25.2M25.20 mi0.35 mi13775+359556+279556+2712521(Top 44%)8249(Top 51%)8249(Top 501%)
Finish26.22 mi1.02 mi13802-279550+69550+614843(Top 52%)9413(Top 58%)9413(Top 571%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21story building
+97ft-345ft

Overall

16063

Males

10836

M55-59

10836

5K→10K

3.1 - 6.2 mi

Top 55%
×5story building
+79ft-138ft

Overall

15664

Males

10694

M55-59

10694

10K→15K

6.2 - 9.3 mi

Top 57%
×3story building
+67ft-78ft

Overall

16063

Males

10836

M55-59

10836

15K→20K

9.3 - 12.4 mi

Top 60%
×5story building
+106ft-86ft

Overall

16948

Males

11151

M55-59

11151

20K→Half

12.4 - 13.1 mi

Top 52%
×2story building
+19ft-37ft

Overall

14748

Males

10223

M55-59

10223

Half→25K

13.1 - 15.5 mi

Top 46%
×4story building
+66ft-88ft

Overall

13028

Males

9302

M55-59

9302

25K→30K

15.5 - 18.6 mi

Top 55%
×9story building
+181ft-148ft

Overall

15496

Males

10279

M55-59

10279

30K→20M

18.6 - 20.0 mi

Top 55%
×5story building
+64ft-50ft

Overall

15603

Males

10195

M55-59

10195

20M→21M

20.0 - 21.0 mi

Top 55%
×8story building
+106ft-24ft

Overall

15761

Males

10134

M55-59

10134

21M→35K

21.0 - 21.8 mi

Top 33%
×7story building
+17ft-86ft

Overall

9471

Males

7114

M55-59

7114

35K→23M

21.8 - 23.0 mi

Top 24%
×5story building
+23ft-63ft

Overall

6832

Males

5499

M55-59

5499

23M→24M

23.0 - 24.0 mi

Top 23%
×6story building
+12ft-82ft

Overall

6431

Males

5186

M55-59

5186

24M→40K

24.0 - 24.9 mi

Top 31%
×1story
+6ft-20ft

Overall

8745

Males

6402

M55-59

6402

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

12521

Males

8249

M55-59

8249

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2story building
+22ft-21ft

Overall

14843

Males

9413

M55-59

9413

Passing Analysis

Category:
Athletes Passed
2611
Passed By
3292
Net Change
-681
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13121
5K → 10K471255-1208#13121#14329
10K → 15K66678-612#14329#14941
15K → 20K75701-626#14941#15567
20K → Half6917+52#15567#15515
Half → 25K45613+443#15515#15072
25K → 30K220301-81#15072#15153
30K → 20M113125-12#15153#15165
20M → 21M11998+21#15165#15144
21M → 35K2221+221#15144#14923
35K → 23M4991+498#14923#14425
23M → 24M3640+364#14425#14061
24M → 40K2543+251#14061#13810
40K → 25.2M5015+35#13810#13775
25.2M → Finish5784-27#13775#13802
TOTALS26113292-681
📊

Passing Visuals

Category:
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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