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BOSTON MARATHON 2025

Yuanlong Xu

Bib: 14875•X

TX

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 42%
Gender (Other)
#0 / 71
Top 45%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:35
Rank: #13014
Start → 5K
23:35 | 7:35/mi
10K· 6.21 mi
46:55
Rank: #12567 (+447)
5K → 10K
23:20 | 7:31/mi
15K· 9.32 mi
1:09:59
Rank: #12053 (+514)
10K → 15K
23:04 | 7:25/mi
20K· 12.43 mi
1:33:48
Rank: #12053
15K → 20K
23:49 | 7:40/mi
Half· 13.11 mi
1:39:11
Rank: #12205 (-152)
20K → Half
5:23 | 7:53/mi
25K· 15.53 mi
1:57:59
Rank: #12132 (+73)
Half → 25K
18:48 | 7:45/mi
30K· 18.64 mi
2:23:55
Rank: #12431 (-299)
25K → 30K
25:56 | 8:21/mi
20M
2:34:57
Rank: #12298 (+133)
30K → 20M
11:02 | 8:07/mi
21M
2:43:45
Rank: #12283 (+15)
20M → 21M
8:48 | 8:48/mi
35K· 21.75 mi
2:49:29
Rank: #12170 (+113)
21M → 35K
5:44 | 7:40/mi
23M
2:59:58
Rank: #12156 (+14)
35K → 23M
10:29 | 8:22/mi
24M
3:07:49
Rank: #12056 (+100)
23M → 24M
7:51 | 7:51/mi
40K· 24.85 mi
3:14:41
Rank: #11961 (+95)
24M → 40K
6:52 | 8:02/mi
25.2M
3:17:52
Rank: #11965 (-4)
40K → 25.2M
3:11 | 9:14/mi
Finish· 26.22 mi
3:25:45
Rank: #11910 (+55)
25.2M → Finish
7:53 | 7:44/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:11
Pace7:34 /mi
2nd Half
Distance13.11 mi
Time1:46:34
Pace8:08 /mi
📊Positive Split: 7.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:1023:357:3523:35
7:35
-
10K
6.21 mi11:16:3046:557:3323:20
7:31
-0:04
15K
9.32 mi11:39:341:09:597:3123:04
7:25
-0:06
20K
12.43 mi12:03:231:33:487:3323:49
7:40
+0:15
Half
13.11 mi12:08:461:39:117:345:23
7:53
+0:13
25K
15.53 mi12:27:341:57:597:3618:48
7:45
-0:08
30K
18.64 mi12:53:302:23:557:4325:56
8:21
+0:36
20M
20.00 mi13:04:322:34:577:4511:02
8:07
-0:14
21M
21.00 mi13:13:202:43:457:488:48
8:48
+0:41
35K
21.75 mi13:19:042:49:297:485:44
7:40
-1:08
23M
23.00 mi13:29:332:59:587:4910:29
8:22
+0:42
24M
24.00 mi13:37:243:07:497:507:51
7:51
-0:31
40K
24.85 mi13:44:163:14:417:506:52
8:02
+0:11
25.2M
25.20 mi13:47:273:17:527:513:11
9:14
+1:12
Finish
26.22 mi13:55:203:25:457:517:53
7:44
-1:30

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

7:25 /mi

Average Pace

7:51 /mi

Slowest Pace

9:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:09:59

34% of race

Time at Steady Pace

1:16:20

37% of race

Time at Slower Pace

59:26

29% of race

Average Pace: 7:51 /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 mi10:53:1023:357:3523:35
7:35
#13014
10K
6.21 mi11:16:3046:557:3323:20
7:31
#12567
15K
9.32 mi11:39:341:09:597:3123:04
7:25
#12053
20K
12.43 mi12:03:231:33:487:3323:49
7:40
#12053
Half
13.11 mi12:08:461:39:117:345:23
7:53
#12205
25K
15.53 mi12:27:341:57:597:3618:48
7:45
#12132
30K
18.64 mi12:53:302:23:557:4325:56
8:21
#12431
20M
20.00 mi13:04:322:34:577:4511:02
8:07
#12298
21M
21.00 mi13:13:202:43:457:488:48
8:48
#12283
35K
21.75 mi13:19:042:49:297:485:44
7:40
#12170
23M
23.00 mi13:29:332:59:587:4910:29
8:22
#12156
24M
24.00 mi13:37:243:07:497:507:51
7:51
#12056
40K
24.85 mi13:44:163:14:417:506:52
8:02
#11961
25.2M
25.20 mi13:47:273:17:527:513:11
9:14
#11965
Finish
26.22 mi13:55:203:25:457:517:53
7:44
#11910
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallXAge DivSeg. OverallSeg. XSeg. Age Div
5K3.11 mi3.11 mi13014373711069(Top 39%)32(Top 45%)32
10K6.21 mi3.10 mi12567+447373712173(Top 43%)36(Top 51%)36
15K9.32 mi3.11 mi12053+51436+136+111069(Top 39%)32(Top 45%)32
20K12.43 mi3.11 mi1205334+234+212073(Top 43%)33(Top 46%)33
Half13.11 mi0.68 mi12205-15235-135-114911(Top 52%)45(Top 63%)45
25K15.53 mi2.42 mi12132+7333+233+211946(Top 42%)34(Top 48%)34
30K18.64 mi3.11 mi12431-29932+132+113775(Top 48%)38(Top 54%)38
20M20.00 mi1.36 mi12298+13331+131+111204(Top 39%)29(Top 41%)29
21M21.00 mi1.00 mi12283+15313112246(Top 43%)32(Top 45%)32
35K21.75 mi0.75 mi12170+11331319720(Top 34%)28(Top 39%)28
23M23.00 mi1.25 mi12156+14313112461(Top 44%)30(Top 42%)30
24M24.00 mi1.00 mi12056+10030+130+110127(Top 36%)28(Top 39%)28
40K24.85 mi0.85 mi11961+9531-131-110362(Top 36%)28(Top 39%)28
25.2M25.20 mi0.35 mi11965-4313112957(Top 46%)37(Top 52%)37
Finish26.22 mi1.02 mi11910+55313110908(Top 38%)31(Top 44%)31

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×21stories
+97ft-345ft

Overall

11069

X

32

Age Div

32

5K→10K

3.1 - 6.2 mi

Top 43%
×5stories
+79ft-138ft

Overall

12173

X

36

Age Div

36

10K→15K

6.2 - 9.3 mi

Top 39%
×3stories
+67ft-78ft

Overall

11069

X

32

Age Div

32

15K→20K

9.3 - 12.4 mi

Top 43%
×5stories
+106ft-86ft

Overall

12073

X

33

Age Div

33

20K→Half

12.4 - 13.1 mi

Top 52%
×2stories
+19ft-37ft

Overall

14911

X

45

Age Div

45

Half→25K

13.1 - 15.5 mi

Top 42%
×4stories
+66ft-88ft

Overall

11946

X

34

Age Div

34

25K→30K

15.5 - 18.6 mi

Top 48%
×9stories
+181ft-148ft

Overall

13775

X

38

Age Div

38

30K→20M

18.6 - 20.0 mi

Top 39%
×5stories
+64ft-50ft

Overall

11204

X

29

Age Div

29

20M→21M

20.0 - 21.0 mi

Top 43%
×8stories
+106ft-24ft

Overall

12246

X

32

Age Div

32

21M→35K

21.0 - 21.8 mi

Top 34%
×7stories
+17ft-86ft

Overall

9720

X

28

Age Div

28

35K→23M

21.8 - 23.0 mi

Top 44%
×5stories
+23ft-63ft

Overall

12461

X

30

Age Div

30

23M→24M

23.0 - 24.0 mi

Top 36%
×6stories
+12ft-82ft

Overall

10127

X

28

Age Div

28

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

10362

X

28

Age Div

28

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

12957

X

37

Age Div

37

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2stories
+22ft-21ft

Overall

10908

X

31

Age Div

31

Passing Analysis

Category:
Athletes Passed
2580
Passed By
1476
Net Change
+1104
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13014
5K → 10K565118+447#13014#12567
10K → 15K54632+514#12567#12053
15K → 20K1931930#12053#12053
20K → Half9161-152#12053#12205
Half → 25K189116+73#12205#12132
25K → 30K167466-299#12132#12431
30K → 20M18148+133#12431#12298
20M → 21M10691+15#12298#12283
21M → 35K12411+113#12283#12170
35K → 23M11399+14#12170#12156
23M → 24M13131+100#12156#12056
24M → 40K12631+95#12056#11961
40K → 25.2M3135-4#11961#11965
25.2M → Finish9944+55#11965#11910
TOTALS25801476+1104
📊

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