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BOSTON MARATHON 2025

Sijian Zhang

Bib: 17134•M

PA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M60-64)
#0 / 1259
Top 23%
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
8:08/mi
25:17
↑ 97↓ 3451.5%
10K· 6.21 mi
8:01/mi
50:12
↑ 79↓ 1380.4%
15K· 9.32 mi
7:52/mi
1:14:37
↑ 67↓ 78
20K· 12.43 mi
7:58/mi
1:39:23
↑ 106↓ 860.1%
Half· 13.11 mi
7:58/mi
1:44:49
↑ 19↓ 370.5%
25K· 15.53 mi
7:55/mi
2:04:01
↑ 66↓ 880.2%
30K· 18.64 mi
8:21/mi
2:29:58
↑ 181↓ 1480.2%
20M
8:42/mi
2:41:48
↑ 64↓ 500.2%
21M
9:23/mi
2:51:11
↑ 106↓ 241.6%
35K· 21.75 mi
8:16/mi
2:57:22
↑ 17↓ 861.7%
23M
8:22/mi
3:07:50
↑ 23↓ 630.6%
24M
8:24/mi
3:16:14
↓ 821.3%
40K· 24.85 mi
8:31/mi
3:23:31
↓ 200.3%
25.2M
9:08/mi
3:26:40
↑ 13↓ 160.2%
Finish· 26.22 mi
8:20/mi
3:35:10
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:49
Pace8:00 /mi
2nd Half
Distance13.11 mi
Time1:50:21
Pace8:25 /mi
📊Positive Split: 5.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:2825:178:0825:17
8:08
-
10K
6.21 mi11:41:2350:128:0524:55
8:01
-0:07
15K
9.32 mi12:05:481:14:378:0024:25
7:52
-0:09
20K
12.43 mi12:30:341:39:238:0024:46
7:58
+0:06
Half
13.11 mi12:36:001:44:498:005:26
7:58
0:00
25K
15.53 mi12:55:122:04:017:5919:12
7:55
-0:03
30K
18.64 mi13:21:092:29:588:0325:57
8:21
+0:26
20M
20.00 mi13:32:592:41:488:0511:50
8:42
+0:21
21M
21.00 mi13:42:222:51:118:099:23
9:23
+0:41
35K
21.75 mi13:48:332:57:228:096:11
8:16
-1:07
23M
23.00 mi13:59:013:07:508:1010:28
8:22
+0:06
24M
24.00 mi14:07:253:16:148:118:24
8:24
+0:02
40K
24.85 mi14:14:423:23:318:117:17
8:31
+0:07
25.2M
25.20 mi14:17:513:26:408:123:09
9:08
+0:37
Finish
26.22 mi14:26:213:35:108:138:30
8:20
-0:48

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

7:52 /mi

Average Pace

8:13 /mi

Slowest Pace

9:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:10:48

89% of race

Time at Steady Pace

14:59

7% of race

Time at Slower Pace

9:23

4% of race

Average Pace: 8:12 /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 mi11:16:2825:178:0825:17
8:08
#17624
10K
6.21 mi11:41:2350:128:0524:55
8:01
#17096
15K
9.32 mi12:05:481:14:378:0024:25
7:52
#16370
20K
12.43 mi12:30:341:39:238:0024:46
7:58
#15892
Half
13.11 mi12:36:001:44:498:005:26
7:58
#15884
25K
15.53 mi12:55:122:04:017:5919:12
7:55
#15412
30K
18.64 mi13:21:092:29:588:0325:57
8:21
#15103
20M
20.00 mi13:32:592:41:488:0511:50
8:42
#15054
21M
21.00 mi13:42:222:51:118:099:23
9:23
#15038
35K
21.75 mi13:48:332:57:228:096:11
8:16
#14989
23M
23.00 mi13:59:013:07:508:1010:28
8:22
#14783
24M
24.00 mi14:07:253:16:148:118:24
8:24
#14722
40K
24.85 mi14:14:423:23:318:117:17
8:31
#14649
25.2M
25.20 mi14:17:513:26:408:123:09
9:08
#14601
Finish
26.22 mi14:26:213:35:108:138:30
8:20
#14604
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi17624114611146114878(Top 52%)10319(Top 64%)10319(Top 820%)
10K6.21 mi3.10 mi17096+52811260+20111260+20116625(Top 59%)11076(Top 69%)11076(Top 880%)
15K9.32 mi3.11 mi16370+72610965+29510965+29514878(Top 52%)10319(Top 64%)10319(Top 820%)
20K12.43 mi3.11 mi15892+47810757+20810757+20814699(Top 52%)10174(Top 63%)10174(Top 808%)
Half13.11 mi0.68 mi15884+810752+510752+515555(Top 55%)10583(Top 66%)10583(Top 841%)
25K15.53 mi2.42 mi15412+47210526+22610526+22613238(Top 47%)9412(Top 58%)9412(Top 748%)
30K18.64 mi3.11 mi15103+30910332+19410332+19413835(Top 49%)9526(Top 59%)9526(Top 757%)
20M20.00 mi1.36 mi15054+4910277+5510277+5515092(Top 53%)9956(Top 62%)9956(Top 791%)
21M21.00 mi1.00 mi15038+1610247+3010247+3015524(Top 55%)10014(Top 62%)10014(Top 795%)
35K21.75 mi0.75 mi14989+4910216+3110216+3114017(Top 49%)9302(Top 58%)9302(Top 739%)
23M23.00 mi1.25 mi14783+20610095+12110095+12112412(Top 44%)8429(Top 52%)8429(Top 669%)
24M24.00 mi1.00 mi14722+6110036+5910036+5913854(Top 49%)9079(Top 56%)9079(Top 721%)
40K24.85 mi0.85 mi14649+739979+579979+5713539(Top 48%)8783(Top 55%)8783(Top 698%)
25.2M25.20 mi0.35 mi14601+489942+379942+3712530(Top 44%)8258(Top 51%)8258(Top 656%)
Finish26.22 mi1.02 mi14604-39913+299913+2915170(Top 53%)9554(Top 59%)9554(Top 759%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21story building
+97ft-345ft

Overall

14878

Males

10319

M60-64

10319

5K→10K

3.1 - 6.2 mi

Top 59%
×5story building
+79ft-138ft

Overall

16625

Males

11076

M60-64

11076

10K→15K

6.2 - 9.3 mi

Top 52%
×3story building
+67ft-78ft

Overall

14878

Males

10319

M60-64

10319

15K→20K

9.3 - 12.4 mi

Top 52%
×5story building
+106ft-86ft

Overall

14699

Males

10174

M60-64

10174

20K→Half

12.4 - 13.1 mi

Top 55%
×2story building
+19ft-37ft

Overall

15555

Males

10583

M60-64

10583

Half→25K

13.1 - 15.5 mi

Top 47%
×4story building
+66ft-88ft

Overall

13238

Males

9412

M60-64

9412

25K→30K

15.5 - 18.6 mi

Top 49%
×9story building
+181ft-148ft

Overall

13835

Males

9526

M60-64

9526

30K→20M

18.6 - 20.0 mi

Top 53%
×5story building
+64ft-50ft

Overall

15092

Males

9956

M60-64

9956

20M→21M

20.0 - 21.0 mi

Top 55%
×8story building
+106ft-24ft

Overall

15524

Males

10014

M60-64

10014

21M→35K

21.0 - 21.8 mi

Top 49%
×7story building
+17ft-86ft

Overall

14017

Males

9302

M60-64

9302

35K→23M

21.8 - 23.0 mi

Top 44%
×5story building
+23ft-63ft

Overall

12412

Males

8429

M60-64

8429

23M→24M

23.0 - 24.0 mi

Top 49%
×6story building
+12ft-82ft

Overall

13854

Males

9079

M60-64

9079

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

13539

Males

8783

M60-64

8783

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

12530

Males

8258

M60-64

8258

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2story building
+22ft-21ft

Overall

15170

Males

9554

M60-64

9554

Passing Analysis

Category:
Athletes Passed
3715
Passed By
695
Net Change
+3020
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17624
5K → 10K638110+528#17624#17096
10K → 15K73913+726#17096#16370
15K → 20K50729+478#16370#15892
20K → Half4032+8#15892#15884
Half → 25K4808+472#15884#15412
25K → 30K39384+309#15412#15103
30K → 20M14899+49#15103#15054
20M → 21M124108+16#15054#15038
21M → 35K7728+49#15038#14989
35K → 23M23024+206#14989#14783
23M → 24M10140+61#14783#14722
24M → 40K10835+73#14722#14649
40K → 25.2M579+48#14649#14601
25.2M → Finish7376-3#14601#14604
TOTALS3715695+3020
📊

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