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BOSTON MARATHON 2025

Xing Xiang

Bib: 31144•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 45%
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:45
Rank: #20513
Start → 5K
8:37/mi
26:45 split
10K· 6.21 mi
53:21
Rank: #20320 (+193)
5K → 10K
8:34/mi
26:36 split
15K· 9.32 mi
1:19:53
Rank: #20081 (+239)
10K → 15K
8:32/mi
26:32 split
20K· 12.43 mi
1:46:18
Rank: #19615 (+466)
15K → 20K
8:30/mi
26:25 split
Half· 13.11 mi
1:51:59
Rank: #19536 (+79)
20K → Half
8:20/mi
5:41 split
25K· 15.53 mi
2:12:34
Rank: #19125 (+411)
Half → 25K
8:29/mi
20:35 split
30K· 18.64 mi
2:39:30
Rank: #18483 (+642)
25K → 30K
8:40/mi
26:56 split
20M
2:50:49
Rank: #18034 (+449)
30K → 20M
8:20/mi
11:19 split
21M
2:59:34
Rank: #17697 (+337)
20M → 21M
8:45/mi
8:45 split
35K· 21.75 mi
3:05:25
Rank: #17448 (+249)
21M → 35K
7:49/mi
5:51 split
23M
3:15:32
Rank: #17021 (+427)
35K → 23M
8:05/mi
10:07 split
24M
3:23:31
Rank: #16755 (+266)
23M → 24M
7:59/mi
7:59 split
40K· 24.85 mi
3:30:26
Rank: #16517 (+238)
24M → 40K
8:05/mi
6:55 split
25.2M
3:33:17
Rank: #16370 (+147)
40K → 25.2M
8:16/mi
2:51 split
Finish· 26.22 mi
3:40:47
Rank: #16058 (+312)
25.2M → Finish
7:22/mi
7:30 split

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:51:59
Pace8:33 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:48:48
Pace8:18 /mi
📊Negative Split: 2.8% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:3226:458:3726:45
8:37
-
10K
6.21 mi12:14:0853:218:3526:36
8:34
-0:03
15K
9.32 mi12:40:401:19:538:3426:32
8:32
-0:02
20K
12.43 mi13:07:051:46:188:3326:25
8:30
-0:02
Half
13.11 mi13:12:461:51:598:335:41
8:20
-0:10
25K
15.53 mi13:33:212:12:348:3220:35
8:29
+0:09
30K
18.64 mi14:00:172:39:308:3326:56
8:40
+0:11
20M
20.00 mi14:11:362:50:498:3211:19
8:20
-0:20
21M
21.00 mi14:20:212:59:348:338:45
8:45
+0:25
35K
21.75 mi14:26:123:05:258:325:51
7:49
-0:56
23M
23.00 mi14:36:193:15:328:3010:07
8:05
+0:16
24M
24.00 mi14:44:183:23:318:297:59
7:59
-0:06
40K
24.85 mi14:51:133:30:268:286:55
8:05
+0:06
25.2M
25.20 mi14:54:043:33:178:282:51
8:16
+0:11
Finish
26.22 mi15:01:343:40:478:267:30
7:22
-0:54

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

7:22 /mi

Average Pace

8:26 /mi

Slowest Pace

8:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

38:22

17% of race

Time at Steady Pace

2:53:40

79% of race

Time at Slower Pace

8:45

4% of race

Average Pace: 8:25 /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 mi11:47:3226:458:3726:45
8:37
#20513
10K
6.21 mi12:14:0853:218:3526:36
8:34
#20320
15K
9.32 mi12:40:401:19:538:3426:32
8:32
#20081
20K
12.43 mi13:07:051:46:188:3326:25
8:30
#19615
Half
13.11 mi13:12:461:51:598:335:41
8:20
#19536
25K
15.53 mi13:33:212:12:348:3220:35
8:29
#19125
30K
18.64 mi14:00:172:39:308:3326:56
8:40
#18483
20M
20.00 mi14:11:362:50:498:3211:19
8:20
#18034
21M
21.00 mi14:20:212:59:348:338:45
8:45
#17697
35K
21.75 mi14:26:123:05:258:325:51
7:49
#17448
23M
23.00 mi14:36:193:15:328:3010:07
8:05
#17021
24M
24.00 mi14:44:183:23:318:297:59
7:59
#16755
40K
24.85 mi14:51:133:30:268:286:55
8:05
#16517
25.2M
25.20 mi14:54:043:33:178:282:51
8:16
#16370
Finish
26.22 mi15:01:343:40:478:267:30
7:22
#16058
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi205137808780819577(Top 69%)7208(Top 59%)7208(Top 132%)
10K6.21 mi3.10 mi20320+1937659+1497659+14920154(Top 71%)7546(Top 62%)7546(Top 138%)
15K9.32 mi3.11 mi20081+2397515+1447515+14419577(Top 69%)7208(Top 59%)7208(Top 132%)
20K12.43 mi3.11 mi19615+4667252+2637252+26318261(Top 64%)6477(Top 53%)6477(Top 118%)
Half13.11 mi0.68 mi19536+797208+447208+4418115(Top 64%)6365(Top 52%)6365(Top 116%)
25K15.53 mi2.42 mi19125+4116984+2246984+22417131(Top 60%)5928(Top 48%)5928(Top 108%)
30K18.64 mi3.11 mi18483+6426653+3316653+33115828(Top 56%)5358(Top 44%)5358(Top 98%)
20M20.00 mi1.36 mi18034+4496441+2126441+21212713(Top 45%)3823(Top 31%)3823(Top 70%)
21M21.00 mi1.00 mi17697+3376264+1776264+17712032(Top 42%)3625(Top 30%)3625(Top 66%)
35K21.75 mi0.75 mi17448+2496163+1016163+10111056(Top 39%)3154(Top 26%)3154(Top 58%)
23M23.00 mi1.25 mi17021+4275946+2175946+21710660(Top 38%)3078(Top 25%)3078(Top 56%)
24M24.00 mi1.00 mi16755+2665815+1315815+13111184(Top 39%)3416(Top 28%)3416(Top 62%)
40K24.85 mi0.85 mi16517+2385698+1175698+11710846(Top 38%)3355(Top 27%)3355(Top 61%)
25.2M25.20 mi0.35 mi16370+1475625+735625+737569(Top 27%)1909(Top 16%)1909(Top 35%)
Finish26.22 mi1.02 mi16058+3125463+1625463+1628257(Top 29%)2193(Top 18%)2193(Top 40%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21story building
+97ft-345ft

Overall

19577

Females

7208

F18-39

7208

5K→10K

3.1 - 6.2 mi

Top 71%
×5story building
+79ft-138ft

Overall

20154

Females

7546

F18-39

7546

10K→15K

6.2 - 9.3 mi

Top 69%
×3story building
+67ft-78ft

Overall

19577

Females

7208

F18-39

7208

15K→20K

9.3 - 12.4 mi

Top 64%
×5story building
+106ft-86ft

Overall

18261

Females

6477

F18-39

6477

20K→Half

12.4 - 13.1 mi

Top 64%
×2story building
+19ft-37ft

Overall

18115

Females

6365

F18-39

6365

Half→25K

13.1 - 15.5 mi

Top 60%
×4story building
+66ft-88ft

Overall

17131

Females

5928

F18-39

5928

25K→30K

15.5 - 18.6 mi

Top 56%
×9story building
+181ft-148ft

Overall

15828

Females

5358

F18-39

5358

30K→20M

18.6 - 20.0 mi

Top 45%
×5story building
+64ft-50ft

Overall

12713

Females

3823

F18-39

3823

20M→21M

20.0 - 21.0 mi

Top 42%
×8story building
+106ft-24ft

Overall

12032

Females

3625

F18-39

3625

21M→35K

21.0 - 21.8 mi

Top 39%
×7story building
+17ft-86ft

Overall

11056

Females

3154

F18-39

3154

35K→23M

21.8 - 23.0 mi

Top 38%
×5story building
+23ft-63ft

Overall

10660

Females

3078

F18-39

3078

23M→24M

23.0 - 24.0 mi

Top 39%
×6story building
+12ft-82ft

Overall

11184

Females

3416

F18-39

3416

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10846

Females

3355

F18-39

3355

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7569

Females

1909

F18-39

1909

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2story building
+22ft-21ft

Overall

8257

Females

2193

F18-39

2193

Passing Analysis

Category:
Athletes Passed
4811
Passed By
356
Net Change
+4455
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20513
5K → 10K401208+193#20513#20320
10K → 15K31677+239#20320#20081
15K → 20K48519+466#20081#19615
20K → Half8910+79#19615#19536
Half → 25K43019+411#19536#19125
25K → 30K65412+642#19125#18483
30K → 20M4490+449#18483#18034
20M → 21M3381+337#18034#17697
21M → 35K2501+249#17697#17448
35K → 23M4270+427#17448#17021
23M → 24M2693+266#17021#16755
24M → 40K2424+238#16755#16517
40K → 25.2M1470+147#16517#16370
25.2M → Finish3142+312#16370#16058
TOTALS4811356+4455
📊

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