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BOSTON MARATHON 2025

Weijun Zhang

Bib: 11756•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 47%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 50%
Division (M50-54)
#0 / 1996
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
7:37/mi
23:39
↑ 97↓ 3451.5%
10K· 6.21 mi
7:39/mi
47:24
↑ 79↓ 1380.4%
15K· 9.32 mi
7:37/mi
1:11:03
↑ 67↓ 78
20K· 12.43 mi
7:33/mi
1:34:31
↑ 106↓ 860.1%
Half· 13.11 mi
7:30/mi
1:39:38
↑ 19↓ 370.5%
25K· 15.53 mi
7:34/mi
1:57:58
↑ 66↓ 880.2%
30K· 18.64 mi
8:07/mi
2:23:10
↑ 181↓ 1480.2%
20M
8:55/mi
2:35:17
↑ 64↓ 500.2%
21M
9:56/mi
2:45:13
↑ 106↓ 241.6%
35K· 21.75 mi
8:32/mi
2:51:36
↑ 17↓ 861.7%
23M
8:53/mi
3:02:43
↑ 23↓ 630.6%
24M
8:26/mi
3:11:09
↓ 821.3%
40K· 24.85 mi
8:44/mi
3:18:37
↓ 200.3%
25.2M
10:09/mi
3:22:07
↑ 13↓ 160.2%
Finish· 26.22 mi
8:28/mi
3:30:45
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:38
Pace7:36 /mi
2nd Half
Distance13.11 mi
Time1:51:07
Pace8:29 /mi
📊Positive Split: 11.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:0123:397:3723:39
7:37
-
10K
6.21 mi11:19:4647:247:3823:45
7:39
+0:02
15K
9.32 mi11:43:251:11:037:3723:39
7:37
-0:02
20K
12.43 mi12:06:531:34:317:3623:28
7:33
-0:04
Half
13.11 mi12:12:001:39:387:365:07
7:30
-0:03
25K
15.53 mi12:30:201:57:587:3618:20
7:34
+0:04
30K
18.64 mi12:55:322:23:107:4125:12
8:07
+0:33
20M
20.00 mi13:07:392:35:177:4612:07
8:55
+0:48
21M
21.00 mi13:17:352:45:137:529:56
9:56
+1:01
35K
21.75 mi13:23:582:51:367:536:23
8:32
-1:24
23M
23.00 mi13:35:053:02:437:5711:07
8:53
+0:21
24M
24.00 mi13:43:313:11:097:588:26
8:26
-0:27
40K
24.85 mi13:50:593:18:377:597:28
8:44
+0:18
25.2M
25.20 mi13:54:293:22:078:013:30
10:09
+1:25
Finish
26.22 mi14:03:073:30:458:038:38
8:28
-1:41

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

7:30 /mi

Average Pace

8:03 /mi

Slowest Pace

10:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:58

56% of race

Time at Steady Pace

56:07

27% of race

Time at Slower Pace

36:40

17% of race

Average Pace: 8:02 /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 mi10:56:0123:397:3723:39
7:37
#13214
10K
6.21 mi11:19:4647:247:3823:45
7:39
#13290
15K
9.32 mi11:43:251:11:037:3723:39
7:37
#13061
20K
12.43 mi12:06:531:34:317:3623:28
7:33
#12532
Half
13.11 mi12:12:001:39:387:365:07
7:30
#12498
25K
15.53 mi12:30:201:57:587:3618:20
7:34
#12120
30K
18.64 mi12:55:322:23:107:4125:12
8:07
#12077
20M
20.00 mi13:07:392:35:177:4612:07
8:55
#12436
21M
21.00 mi13:17:352:45:137:529:56
9:56
#12852
35K
21.75 mi13:23:582:51:367:536:23
8:32
#12940
23M
23.00 mi13:35:053:02:437:5711:07
8:53
#13098
24M
24.00 mi13:43:313:11:097:588:26
8:26
#13141
40K
24.85 mi13:50:593:18:377:597:28
8:44
#13201
25.2M
25.20 mi13:54:293:22:078:013:30
10:09
#13274
Finish
26.22 mi14:03:073:30:458:038:38
8:28
#13407
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi132149733973312692(Top 45%)9383(Top 58%)9383(Top 470%)
10K6.21 mi3.10 mi13290-769730+39730+313397(Top 47%)9752(Top 61%)9752(Top 489%)
15K9.32 mi3.11 mi13061+2299601+1299601+12912692(Top 45%)9383(Top 58%)9383(Top 470%)
20K12.43 mi3.11 mi12532+5299333+2689333+26811192(Top 39%)8587(Top 53%)8587(Top 430%)
Half13.11 mi0.68 mi12498+349314+199314+1911683(Top 41%)8893(Top 55%)8893(Top 446%)
25K15.53 mi2.42 mi12120+3789107+2079107+20710444(Top 37%)8118(Top 50%)8118(Top 407%)
30K18.64 mi3.11 mi12077+439015+929015+9212169(Top 43%)8762(Top 54%)8762(Top 439%)
20M20.00 mi1.36 mi12436-3599134-1199134-11916310(Top 57%)10482(Top 65%)10482(Top 525%)
21M21.00 mi1.00 mi12852-4169287-1539287-15318022(Top 63%)11164(Top 69%)11164(Top 559%)
35K21.75 mi0.75 mi12940-889315-289315-2815625(Top 55%)9993(Top 62%)9993(Top 501%)
23M23.00 mi1.25 mi13098-1589338-239338-2315540(Top 55%)9868(Top 61%)9868(Top 494%)
24M24.00 mi1.00 mi13141-439319+199319+1914074(Top 50%)9173(Top 57%)9173(Top 460%)
40K24.85 mi0.85 mi13201-609328-99328-914780(Top 52%)9335(Top 58%)9335(Top 468%)
25.2M25.20 mi0.35 mi13274-739344-169344-1617610(Top 62%)10633(Top 66%)10633(Top 533%)
Finish26.22 mi1.02 mi13407-1339382-389382-3816004(Top 56%)9936(Top 62%)9936(Top 498%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21story building
+97ft-345ft

Overall

12692

Males

9383

M50-54

9383

5K→10K

3.1 - 6.2 mi

Top 47%
×5story building
+79ft-138ft

Overall

13397

Males

9752

M50-54

9752

10K→15K

6.2 - 9.3 mi

Top 45%
×3story building
+67ft-78ft

Overall

12692

Males

9383

M50-54

9383

15K→20K

9.3 - 12.4 mi

Top 39%
×5story building
+106ft-86ft

Overall

11192

Males

8587

M50-54

8587

20K→Half

12.4 - 13.1 mi

Top 41%
×2story building
+19ft-37ft

Overall

11683

Males

8893

M50-54

8893

Half→25K

13.1 - 15.5 mi

Top 37%
×4story building
+66ft-88ft

Overall

10444

Males

8118

M50-54

8118

25K→30K

15.5 - 18.6 mi

Top 43%
×9story building
+181ft-148ft

Overall

12169

Males

8762

M50-54

8762

30K→20M

18.6 - 20.0 mi

Top 57%
×5story building
+64ft-50ft

Overall

16310

Males

10482

M50-54

10482

20M→21M

20.0 - 21.0 mi

Top 63%
×8story building
+106ft-24ft

Overall

18022

Males

11164

M50-54

11164

21M→35K

21.0 - 21.8 mi

Top 55%
×7story building
+17ft-86ft

Overall

15625

Males

9993

M50-54

9993

35K→23M

21.8 - 23.0 mi

Top 55%
×5story building
+23ft-63ft

Overall

15540

Males

9868

M50-54

9868

23M→24M

23.0 - 24.0 mi

Top 50%
×6story building
+12ft-82ft

Overall

14074

Males

9173

M50-54

9173

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

14780

Males

9335

M50-54

9335

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

17610

Males

10633

M50-54

10633

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2story building
+22ft-21ft

Overall

16004

Males

9936

M50-54

9936

Passing Analysis

Category:
Athletes Passed
2192
Passed By
2385
Net Change
-193
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13214
5K → 10K253329-76#13214#13290
10K → 15K32798+229#13290#13061
15K → 20K55223+529#13061#12532
20K → Half4814+34#12532#12498
Half → 25K39214+378#12498#12120
25K → 30K269226+43#12120#12077
30K → 20M51410-359#12077#12436
20M → 21M28444-416#12436#12852
21M → 35K30118-88#12852#12940
35K → 23M76234-158#12940#13098
23M → 24M61104-43#13098#13141
24M → 40K54114-60#13141#13201
40K → 25.2M2194-73#13201#13274
25.2M → Finish30163-133#13274#13407
TOTALS21922385-193
📊

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