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BOSTON MARATHON 2025

West Jiang

Bib: 7308•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:14
Rank: #3942
Start → 5K
20:14 | 6:31/mi
10K· 6.21 mi
41:23
Rank: #5013 (-1071)
5K → 10K
21:09 | 6:48/mi
15K· 9.32 mi
1:02:53
Rank: #5676 (-663)
10K → 15K
21:30 | 6:55/mi
20K· 12.43 mi
1:25:45
Rank: #6819 (-1143)
15K → 20K
22:52 | 7:22/mi
Half· 13.11 mi
1:30:44
Rank: #6998 (-179)
20K → Half
4:59 | 7:18/mi
25K· 15.53 mi
1:49:30
Rank: #7575 (-577)
Half → 25K
18:46 | 7:44/mi
30K· 18.64 mi
2:16:05
Rank: #8838 (-1263)
25K → 30K
26:35 | 8:33/mi
20M
2:29:00
Rank: #9791 (-953)
30K → 20M
12:55 | 9:30/mi
21M
2:40:36
Rank: #11055 (-1264)
20M → 21M
11:36 | 11:36/mi
35K· 21.75 mi
2:47:43
Rank: #11506 (-451)
21M → 35K
7:07 | 9:31/mi
23M
3:00:28
Rank: #12325 (-819)
35K → 23M
12:45 | 10:11/mi
24M
3:10:56
Rank: #13075 (-750)
23M → 24M
10:28 | 10:28/mi
40K· 24.85 mi
3:20:28
Rank: #13759 (-684)
24M → 40K
9:32 | 11:09/mi
25.2M
3:24:42
Rank: #14074 (-315)
40K → 25.2M
4:14 | 12:17/mi
Finish· 26.22 mi
3:35:39
Rank: #14732 (-658)
25.2M → Finish
10:57 | 10:45/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:30:44
Pace6:55 /mi
2nd Half
Distance13.11 mi
Time2:04:55
Pace9:32 /mi
📊Positive Split: 37.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:36:1620:146:3120:14
6:31
-
10K
6.21 mi11:57:2541:236:4021:09
6:48
+0:17
15K
9.32 mi12:18:551:02:536:4521:30
6:55
+0:07
20K
12.43 mi12:41:471:25:456:5422:52
7:22
+0:27
Half
13.11 mi12:46:461:30:446:554:59
7:18
-0:04
25K
15.53 mi13:05:321:49:307:0318:46
7:44
+0:26
30K
18.64 mi13:32:072:16:057:1826:35
8:33
+0:49
20M
20.00 mi13:45:022:29:007:2712:55
9:30
+0:57
21M
21.00 mi13:56:382:40:367:3911:36
11:36
+2:06
35K
21.75 mi14:03:452:47:437:437:07
9:31
-2:05
23M
23.00 mi14:16:303:00:287:5112:45
10:11
+0:40
24M
24.00 mi14:26:583:10:567:5710:28
10:28
+0:17
40K
24.85 mi14:36:303:20:288:049:32
11:09
+0:41
25.2M
25.20 mi14:40:443:24:428:074:14
12:17
+1:08
Finish
26.22 mi14:51:413:35:398:1410:57
10:45
-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

6:31 /mi

Average Pace

8:14 /mi

Slowest Pace

12:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:16:05

63% of race

Time at Steady Pace

32:47

15% of race

Time at Slower Pace

46:47

22% of race

Average Pace: 8:13 /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 mi11:36:1620:146:3120:14
6:31
#3942
10K
6.21 mi11:57:2541:236:4021:09
6:48
#5013
15K
9.32 mi12:18:551:02:536:4521:30
6:55
#5676
20K
12.43 mi12:41:471:25:456:5422:52
7:22
#6819
Half
13.11 mi12:46:461:30:446:554:59
7:18
#6998
25K
15.53 mi13:05:321:49:307:0318:46
7:44
#7575
30K
18.64 mi13:32:072:16:057:1826:35
8:33
#8838
20M
20.00 mi13:45:022:29:007:2712:55
9:30
#9791
21M
21.00 mi13:56:382:40:367:3911:36
11:36
#11055
35K
21.75 mi14:03:452:47:437:437:07
9:31
#11506
23M
23.00 mi14:16:303:00:287:5112:45
10:11
#12325
24M
24.00 mi14:26:583:10:567:5710:28
10:28
#13075
40K
24.85 mi14:36:303:20:288:049:32
11:09
#13759
25.2M
25.20 mi14:40:443:24:428:074:14
12:17
#14074
Finish
26.22 mi14:51:413:35:398:1410:57
10:45
#14732
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3942373237327099(Top 25%)6327(Top 39%)6327(Top 112%)
10K6.21 mi3.10 mi5013-10714673-9414673-9416480(Top 23%)5868(Top 36%)5868(Top 104%)
15K9.32 mi3.11 mi5676-6635231-5585231-5587099(Top 25%)6327(Top 39%)6327(Top 112%)
20K12.43 mi3.11 mi6819-11436143-9126143-9129552(Top 34%)7770(Top 48%)7770(Top 138%)
Half13.11 mi0.68 mi6998-1796271-1286271-12810040(Top 35%)8062(Top 50%)8062(Top 143%)
25K15.53 mi2.42 mi7575-5776656-3856656-38511863(Top 42%)8791(Top 55%)8791(Top 156%)
30K18.64 mi3.11 mi8838-12637376-7207376-72015111(Top 53%)10106(Top 63%)10106(Top 179%)
20M20.00 mi1.36 mi9791-9537868-4927868-49219179(Top 68%)11764(Top 73%)11764(Top 209%)
21M21.00 mi1.00 mi11055-12648458-5908458-59022799(Top 80%)13340(Top 83%)13340(Top 236%)
35K21.75 mi0.75 mi11506-4518637-1798637-17920355(Top 72%)12132(Top 75%)12132(Top 215%)
23M23.00 mi1.25 mi12325-8198985-3488985-34821052(Top 74%)12413(Top 77%)12413(Top 220%)
24M24.00 mi1.00 mi13075-7509297-3129297-31222706(Top 80%)13159(Top 82%)13159(Top 233%)
40K24.85 mi0.85 mi13759-6849564-2679564-26723443(Top 83%)13465(Top 84%)13465(Top 239%)
25.2M25.20 mi0.35 mi14074-3159703-1399703-13923718(Top 84%)13611(Top 85%)13611(Top 241%)
Finish26.22 mi1.02 mi14732-6589975-2729975-27224823(Top 87%)14180(Top 88%)14180(Top 251%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 25%
×21stories
+97ft-345ft

Overall

7099

Males

6327

M18-39

6327

5K→10K

3.1 - 6.2 mi

Top 23%
×5stories
+79ft-138ft

Overall

6480

Males

5868

M18-39

5868

10K→15K

6.2 - 9.3 mi

Top 25%
×3stories
+67ft-78ft

Overall

7099

Males

6327

M18-39

6327

15K→20K

9.3 - 12.4 mi

Top 34%
×5stories
+106ft-86ft

Overall

9552

Males

7770

M18-39

7770

20K→Half

12.4 - 13.1 mi

Top 35%
×2stories
+19ft-37ft

Overall

10040

Males

8062

M18-39

8062

Half→25K

13.1 - 15.5 mi

Top 42%
×4stories
+66ft-88ft

Overall

11863

Males

8791

M18-39

8791

25K→30K

15.5 - 18.6 mi

Top 53%
×9stories
+181ft-148ft

Overall

15111

Males

10106

M18-39

10106

30K→20M

18.6 - 20.0 mi

Top 68%
×5stories
+64ft-50ft

Overall

19179

Males

11764

M18-39

11764

20M→21M

20.0 - 21.0 mi

Top 80%
×8stories
+106ft-24ft

Overall

22799

Males

13340

M18-39

13340

21M→35K

21.0 - 21.8 mi

Top 72%
×7stories
+17ft-86ft

Overall

20355

Males

12132

M18-39

12132

35K→23M

21.8 - 23.0 mi

Top 74%
×5stories
+23ft-63ft

Overall

21052

Males

12413

M18-39

12413

23M→24M

23.0 - 24.0 mi

Top 80%
×6stories
+12ft-82ft

Overall

22706

Males

13159

M18-39

13159

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

23443

Males

13465

M18-39

13465

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

23718

Males

13611

M18-39

13611

25.2M→Finish

25.2 - 26.2 mi

Top 87%
×2stories
+22ft-21ft

Overall

24823

Males

14180

M18-39

14180

Passing Analysis

Category:
Athletes Passed
163
Passed By
10950
Net Change
-10790
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3942
5K → 10K31074-1071#3942#5013
10K → 15K23686-663#5013#5676
15K → 20K101153-1143#5676#6819
20K → Half3182-179#6819#6998
Half → 25K23600-577#6998#7575
25K → 30K331296-1263#7575#8838
30K → 20M14966-953#8838#9791
20M → 21M01262-1264#9791#11055
21M → 35K7458-451#11055#11506
35K → 23M22841-819#11506#12325
23M → 24M6756-750#12325#13075
24M → 40K8692-684#13075#13759
40K → 25.2M2317-315#13759#14074
25.2M → Finish9667-658#14074#14732
TOTALS16310950-10790
📊

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