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BOSTON MARATHON 2025

Liqing Xu

Bib: 28335•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
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
31:46
Rank: #26122
Start → 5K
31:46 | 10:13/mi
10K· 6.21 mi
1:04:46
Rank: #26349 (-227)
5K → 10K
33:00 | 10:37/mi
15K· 9.32 mi
1:39:01
Rank: #26493 (-144)
10K → 15K
34:15 | 11:01/mi
20K· 12.43 mi
2:11:32
Rank: #26134 (+359)
15K → 20K
32:31 | 10:28/mi
Half· 13.11 mi
2:18:07
Rank: #26012 (+122)
20K → Half
6:35 | 9:39/mi
25K· 15.53 mi
2:43:17
Rank: #25700 (+312)
Half → 25K
25:10 | 10:23/mi
30K· 18.64 mi
3:15:02
Rank: #25161 (+539)
25K → 30K
31:45 | 10:13/mi
20M
3:28:17
Rank: #24910 (+251)
30K → 20M
13:15 | 9:45/mi
21M
3:38:54
Rank: #24721 (+189)
20M → 21M
10:37 | 10:37/mi
35K· 21.75 mi
3:45:41
Rank: #24585 (+136)
21M → 35K
6:47 | 9:04/mi
23M
3:57:34
Rank: #24313 (+272)
35K → 23M
11:53 | 9:29/mi
24M
4:06:44
Rank: #24127 (+186)
23M → 24M
9:10 | 9:10/mi
40K· 24.85 mi
4:14:50
Rank: #23959 (+168)
24M → 40K
8:06 | 9:28/mi
25.2M
4:18:32
Rank: #23909 (+50)
40K → 25.2M
3:42 | 10:44/mi
Finish· 26.22 mi
4:27:49
Rank: #23794 (+115)
25.2M → Finish
9:17 | 9:07/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time2:18:07
Pace10:32 /mi
2nd Half✓ Faster
Distance13.11 mi
Time2:09:42
Pace9:54 /mi
📊Negative Split: 6.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:3131:4610:1331:46
10:13
-
10K
6.21 mi12:27:311:04:4610:2533:00
10:37
+0:24
15K
9.32 mi13:01:461:39:0110:3734:15
11:01
+0:24
20K
12.43 mi13:34:172:11:3210:3532:31
10:28
-0:33
Half
13.11 mi13:40:522:18:0710:326:35
9:39
-0:49
25K
15.53 mi14:06:022:43:1710:3125:10
10:23
+0:44
30K
18.64 mi14:37:473:15:0210:2831:45
10:13
-0:10
20M
20.00 mi14:51:023:28:1710:2513:15
9:45
-0:28
21M
21.00 mi15:01:393:38:5410:2510:37
10:37
+0:52
35K
21.75 mi15:08:263:45:4110:236:47
9:04
-1:33
23M
23.00 mi15:20:193:57:3410:2011:53
9:29
+0:25
24M
24.00 mi15:29:294:06:4410:179:10
9:10
-0:19
40K
24.85 mi15:37:354:14:5010:158:06
9:28
+0:18
25.2M
25.20 mi15:41:174:18:3210:163:42
10:44
+1:16
Finish
26.22 mi15:50:344:27:4910:139:17
9:07
-1:37

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

9:04 /mi

Average Pace

10:13 /mi

Slowest Pace

11:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:05:03

24% of race

Time at Steady Pace

2:01:12

45% of race

Time at Slower Pace

1:21:34

30% of race

Average Pace: 10:13 /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 mi11:54:3131:4610:1331:46
10:13
#26122
10K
6.21 mi12:27:311:04:4610:2533:00
10:37
#26349
15K
9.32 mi13:01:461:39:0110:3734:15
11:01
#26493
20K
12.43 mi13:34:172:11:3210:3532:31
10:28
#26134
Half
13.11 mi13:40:522:18:0710:326:35
9:39
#26012
25K
15.53 mi14:06:022:43:1710:3125:10
10:23
#25700
30K
18.64 mi14:37:473:15:0210:2831:45
10:13
#25161
20M
20.00 mi14:51:023:28:1710:2513:15
9:45
#24910
21M
21.00 mi15:01:393:38:5410:2510:37
10:37
#24721
35K
21.75 mi15:08:263:45:4110:236:47
9:04
#24585
23M
23.00 mi15:20:193:57:3410:2011:53
9:29
#24313
24M
24.00 mi15:29:294:06:4410:179:10
9:10
#24127
40K
24.85 mi15:37:354:14:5010:158:06
9:28
#23959
25.2M
25.20 mi15:41:174:18:3210:163:42
10:44
#23909
Finish
26.22 mi15:50:344:27:4910:139:17
9:07
#23794
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi26122108231082326700(Top 94%)11191(Top 92%)11191(Top 205%)
10K6.21 mi3.10 mi26349-22710963-14010963-14026478(Top 93%)11058(Top 90%)11058(Top 202%)
15K9.32 mi3.11 mi26493-14411050-8711050-8726700(Top 94%)11191(Top 92%)11191(Top 205%)
20K12.43 mi3.11 mi26134+35910858+19210858+19225134(Top 88%)10336(Top 85%)10336(Top 189%)
Half13.11 mi0.68 mi26012+12210796+6210796+6223990(Top 84%)9701(Top 79%)9701(Top 177%)
25K15.53 mi2.42 mi25700+31210633+16310633+16324141(Top 85%)9822(Top 80%)9822(Top 180%)
30K18.64 mi3.11 mi25161+53910372+26110372+26122242(Top 78%)8902(Top 73%)8902(Top 163%)
20M20.00 mi1.36 mi24910+25110248+12410248+12420146(Top 71%)7886(Top 64%)7886(Top 144%)
21M21.00 mi1.00 mi24721+18910151+9710151+9720381(Top 72%)8127(Top 66%)8127(Top 149%)
35K21.75 mi0.75 mi24585+13610087+6410087+6418618(Top 66%)7272(Top 59%)7272(Top 133%)
23M23.00 mi1.25 mi24313+2729955+1329955+13218697(Top 66%)7357(Top 60%)7357(Top 135%)
24M24.00 mi1.00 mi24127+1869884+719884+7118235(Top 64%)7174(Top 59%)7174(Top 131%)
40K24.85 mi0.85 mi23959+1689800+849800+8418650(Top 66%)7466(Top 61%)7466(Top 137%)
25.2M25.20 mi0.35 mi23909+509776+249776+2419891(Top 70%)8119(Top 66%)8119(Top 148%)
Finish26.22 mi1.02 mi23794+1159732+449732+4419587(Top 69%)7924(Top 65%)7924(Top 145%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 94%
×21stories
+97ft-345ft

Overall

26700

Females

11191

F18-39

11191

5K→10K

3.1 - 6.2 mi

Top 93%
×5stories
+79ft-138ft

Overall

26478

Females

11058

F18-39

11058

10K→15K

6.2 - 9.3 mi

Top 94%
×3stories
+67ft-78ft

Overall

26700

Females

11191

F18-39

11191

15K→20K

9.3 - 12.4 mi

Top 88%
×5stories
+106ft-86ft

Overall

25134

Females

10336

F18-39

10336

20K→Half

12.4 - 13.1 mi

Top 84%
×2stories
+19ft-37ft

Overall

23990

Females

9701

F18-39

9701

Half→25K

13.1 - 15.5 mi

Top 85%
×4stories
+66ft-88ft

Overall

24141

Females

9822

F18-39

9822

25K→30K

15.5 - 18.6 mi

Top 78%
×9stories
+181ft-148ft

Overall

22242

Females

8902

F18-39

8902

30K→20M

18.6 - 20.0 mi

Top 71%
×5stories
+64ft-50ft

Overall

20146

Females

7886

F18-39

7886

20M→21M

20.0 - 21.0 mi

Top 72%
×8stories
+106ft-24ft

Overall

20381

Females

8127

F18-39

8127

21M→35K

21.0 - 21.8 mi

Top 66%
×7stories
+17ft-86ft

Overall

18618

Females

7272

F18-39

7272

35K→23M

21.8 - 23.0 mi

Top 66%
×5stories
+23ft-63ft

Overall

18697

Females

7357

F18-39

7357

23M→24M

23.0 - 24.0 mi

Top 64%
×6stories
+12ft-82ft

Overall

18235

Females

7174

F18-39

7174

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

18650

Females

7466

F18-39

7466

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

19891

Females

8119

F18-39

8119

25.2M→Finish

25.2 - 26.2 mi

Top 69%
×2stories
+22ft-21ft

Overall

19587

Females

7924

F18-39

7924

Passing Analysis

Category:
Athletes Passed
2894
Passed By
566
Net Change
+2328
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26122
5K → 10K97324-227#26122#26349
10K → 15K79223-144#26349#26493
15K → 20K3667+359#26493#26134
20K → Half1220+122#26134#26012
Half → 25K3142+312#26012#25700
25K → 30K5390+539#25700#25161
30K → 20M2510+251#25161#24910
20M → 21M1901+189#24910#24721
21M → 35K1371+136#24721#24585
35K → 23M2720+272#24585#24313
23M → 24M1871+186#24313#24127
24M → 40K1680+168#24127#23959
40K → 25.2M500+50#23959#23909
25.2M → Finish1227+115#23909#23794
TOTALS2894566+2328
📊

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