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BOSTON MARATHON 2025

Zhijun Tang

Bib: 12210•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 39%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 41%
Division (M50-54)
#0 / 1996
Top 43%
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
7:18/mi
22:42
↑ 97↓ 3451.5%
10K· 6.21 mi
7:26/mi
45:48
↑ 79↓ 1380.4%
15K· 9.32 mi
7:27/mi
1:08:56
↑ 67↓ 78
20K· 12.43 mi
7:38/mi
1:32:38
↑ 106↓ 860.1%
Half· 13.11 mi
7:33/mi
1:37:47
↑ 19↓ 370.5%
25K· 15.53 mi
7:45/mi
1:56:35
↑ 66↓ 880.2%
30K· 18.64 mi
8:01/mi
2:21:28
↑ 181↓ 1480.2%
20M
8:05/mi
2:32:27
↑ 64↓ 500.2%
21M
8:42/mi
2:41:09
↑ 106↓ 241.6%
35K· 21.75 mi
7:52/mi
2:47:02
↑ 17↓ 861.7%
23M
8:06/mi
2:57:11
↑ 23↓ 630.6%
24M
8:01/mi
3:05:12
↓ 821.3%
40K· 24.85 mi
8:07/mi
3:12:08
↓ 200.3%
25.2M
8:54/mi
3:15:12
↑ 13↓ 160.2%
Finish· 26.22 mi
7:52/mi
3:23:13
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:47
Pace7:28 /mi
2nd Half
Distance13.11 mi
Time1:45:26
Pace8:03 /mi
📊Positive Split: 7.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:5722:427:1822:42
7:18
-
10K
6.21 mi11:14:0345:487:2223:06
7:26
+0:08
15K
9.32 mi11:37:111:08:567:2423:08
7:27
+0:01
20K
12.43 mi12:00:531:32:387:2723:42
7:38
+0:11
Half
13.11 mi12:06:021:37:477:285:09
7:33
-0:05
25K
15.53 mi12:24:501:56:357:3018:48
7:45
+0:12
30K
18.64 mi12:49:432:21:287:3524:53
8:01
+0:16
20M
20.00 mi13:00:422:32:277:3710:59
8:05
+0:04
21M
21.00 mi13:09:242:41:097:408:42
8:42
+0:37
35K
21.75 mi13:15:172:47:027:415:53
7:52
-0:50
23M
23.00 mi13:25:262:57:117:4210:09
8:06
+0:14
24M
24.00 mi13:33:273:05:127:438:01
8:01
-0:05
40K
24.85 mi13:40:233:12:087:446:56
8:07
+0:06
25.2M
25.20 mi13:43:273:15:127:453:04
8:54
+0:47
Finish
26.22 mi13:51:283:23:137:458:01
7:52
-1:02

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

7:45 /mi

Slowest Pace

8:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:37:47

48% of race

Time at Steady Pace

1:05:36

32% of race

Time at Slower Pace

39:50

20% of race

Average Pace: 7:45 /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 mi10:50:5722:427:1822:42
7:18
#10419
10K
6.21 mi11:14:0345:487:2223:06
7:26
#10959
15K
9.32 mi11:37:111:08:567:2423:08
7:27
#11015
20K
12.43 mi12:00:531:32:387:2723:42
7:38
#11261
Half
13.11 mi12:06:021:37:477:285:09
7:33
#11302
25K
15.53 mi12:24:501:56:357:3018:48
7:45
#11369
30K
18.64 mi12:49:432:21:287:3524:53
8:01
#11347
20M
20.00 mi13:00:422:32:277:3710:59
8:05
#11267
21M
21.00 mi13:09:242:41:097:408:42
8:42
#11265
35K
21.75 mi13:15:172:47:027:415:53
7:52
#11240
23M
23.00 mi13:25:262:57:117:4210:09
8:06
#11159
24M
24.00 mi13:33:273:05:127:438:01
8:01
#11139
40K
24.85 mi13:40:233:12:087:446:56
8:07
#11104
25.2M
25.20 mi13:43:273:15:127:453:04
8:54
#11088
Finish
26.22 mi13:51:283:23:137:458:01
7:52
#11093
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi104198397839711286(Top 40%)8732(Top 54%)8732(Top 437%)
10K6.21 mi3.10 mi10959-5408646-2498646-24911498(Top 40%)8902(Top 55%)8902(Top 446%)
15K9.32 mi3.11 mi11015-568659-138659-1311286(Top 40%)8732(Top 54%)8732(Top 437%)
20K12.43 mi3.11 mi11261-2468746-878746-8711783(Top 41%)8869(Top 55%)8869(Top 444%)
Half13.11 mi0.68 mi11302-418767-218767-2112067(Top 42%)9039(Top 56%)9039(Top 453%)
25K15.53 mi2.42 mi11369-678762+58762+511952(Top 42%)8824(Top 55%)8824(Top 442%)
30K18.64 mi3.11 mi11347+228670+928670+9211432(Top 40%)8406(Top 52%)8406(Top 421%)
20M20.00 mi1.36 mi11267+808592+788592+7810967(Top 39%)8015(Top 50%)8015(Top 402%)
21M21.00 mi1.00 mi11265+28545+478545+4711645(Top 41%)8195(Top 51%)8195(Top 411%)
35K21.75 mi0.75 mi11240+258511+348511+3411254(Top 40%)7981(Top 50%)7981(Top 400%)
23M23.00 mi1.25 mi11159+818434+778434+7710777(Top 38%)7629(Top 47%)7629(Top 382%)
24M24.00 mi1.00 mi11139+208379+558379+5511326(Top 40%)7817(Top 49%)7817(Top 392%)
40K24.85 mi0.85 mi11104+358333+468333+4610915(Top 38%)7525(Top 47%)7525(Top 377%)
25.2M25.20 mi0.35 mi11088+168307+268307+2611138(Top 39%)7544(Top 47%)7544(Top 378%)
Finish26.22 mi1.02 mi11093-58270+378270+3711907(Top 42%)7988(Top 50%)7988(Top 400%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21story building
+97ft-345ft

Overall

11286

Males

8732

M50-54

8732

5K→10K

3.1 - 6.2 mi

Top 40%
×5story building
+79ft-138ft

Overall

11498

Males

8902

M50-54

8902

10K→15K

6.2 - 9.3 mi

Top 40%
×3story building
+67ft-78ft

Overall

11286

Males

8732

M50-54

8732

15K→20K

9.3 - 12.4 mi

Top 41%
×5story building
+106ft-86ft

Overall

11783

Males

8869

M50-54

8869

20K→Half

12.4 - 13.1 mi

Top 42%
×2story building
+19ft-37ft

Overall

12067

Males

9039

M50-54

9039

Half→25K

13.1 - 15.5 mi

Top 42%
×4story building
+66ft-88ft

Overall

11952

Males

8824

M50-54

8824

25K→30K

15.5 - 18.6 mi

Top 40%
×9story building
+181ft-148ft

Overall

11432

Males

8406

M50-54

8406

30K→20M

18.6 - 20.0 mi

Top 39%
×5story building
+64ft-50ft

Overall

10967

Males

8015

M50-54

8015

20M→21M

20.0 - 21.0 mi

Top 41%
×8story building
+106ft-24ft

Overall

11645

Males

8195

M50-54

8195

21M→35K

21.0 - 21.8 mi

Top 40%
×7story building
+17ft-86ft

Overall

11254

Males

7981

M50-54

7981

35K→23M

21.8 - 23.0 mi

Top 38%
×5story building
+23ft-63ft

Overall

10777

Males

7629

M50-54

7629

23M→24M

23.0 - 24.0 mi

Top 40%
×6story building
+12ft-82ft

Overall

11326

Males

7817

M50-54

7817

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10915

Males

7525

M50-54

7525

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1story
+13ft-16ft

Overall

11138

Males

7544

M50-54

7544

25.2M→Finish

25.2 - 26.2 mi

Top 42%
×2story building
+22ft-21ft

Overall

11907

Males

7988

M50-54

7988

Passing Analysis

Category:
Athletes Passed
1521
Passed By
2195
Net Change
-674
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10419
5K → 10K90630-540#10419#10959
10K → 15K150206-56#10959#11015
15K → 20K112358-246#11015#11261
20K → Half2162-41#11261#11302
Half → 25K139206-67#11302#11369
25K → 30K243221+22#11369#11347
30K → 20M15373+80#11347#11267
20M → 21M103101+2#11267#11265
21M → 35K6641+25#11265#11240
35K → 23M14261+81#11240#11159
23M → 24M9575+20#11159#11139
24M → 40K9156+35#11139#11104
40K → 25.2M4327+16#11104#11088
25.2M → Finish7378-5#11088#11093
TOTALS15212195-674
📊

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