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BOSTON MARATHON 2025

Xing Lu

Bib: 13663•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 44%
Gender (Female)
#0 / 12228
Top 29%
Division (F18-39)
#0 / 5469
Top 47%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:00
Rank: #14186
Start → 5K
24:00 | 7:43/mi
10K· 6.21 mi
48:16
Rank: #14488 (-302)
5K → 10K
24:16 | 7:49/mi
15K· 9.32 mi
1:12:23
Rank: #14345 (+143)
10K → 15K
24:07 | 7:46/mi
20K· 12.43 mi
1:36:35
Rank: #14015 (+330)
15K → 20K
24:12 | 7:47/mi
Half· 13.11 mi
1:41:51
Rank: #13996 (+19)
20K → Half
5:16 | 7:43/mi
25K· 15.53 mi
2:00:48
Rank: #13680 (+316)
Half → 25K
18:57 | 7:49/mi
30K· 18.64 mi
2:26:05
Rank: #13390 (+290)
25K → 30K
25:17 | 8:08/mi
20M
2:37:12
Rank: #13211 (+179)
30K → 20M
11:07 | 8:11/mi
21M
2:45:43
Rank: #13013 (+198)
20M → 21M
8:31 | 8:31/mi
35K· 21.75 mi
2:51:43
Rank: #12991 (+22)
21M → 35K
6:00 | 8:01/mi
23M
3:01:58
Rank: #12846 (+145)
35K → 23M
10:15 | 8:11/mi
24M
3:10:00
Rank: #12776 (+70)
23M → 24M
8:02 | 8:02/mi
40K· 24.85 mi
3:16:58
Rank: #12691 (+85)
24M → 40K
6:58 | 8:09/mi
25.2M
3:19:59
Rank: #12639 (+52)
40K → 25.2M
3:01 | 8:45/mi
Finish· 26.22 mi
3:27:51
Rank: #12541 (+98)
25.2M → Finish
7:52 | 7:43/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:51
Pace7:46 /mi
2nd Half
Distance13.11 mi
Time1:46:00
Pace8:05 /mi
📊Positive Split: 4.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:5724:007:4324:00
7:43
-
10K
6.21 mi11:17:1348:167:4624:16
7:49
+0:06
15K
9.32 mi11:41:201:12:237:4624:07
7:46
-0:03
20K
12.43 mi12:05:321:36:357:4624:12
7:47
+0:01
Half
13.11 mi12:10:481:41:517:465:16
7:43
-0:04
25K
15.53 mi12:29:452:00:487:4718:57
7:49
+0:06
30K
18.64 mi12:55:022:26:057:5025:17
8:08
+0:19
20M
20.00 mi13:06:092:37:127:5211:07
8:11
+0:03
21M
21.00 mi13:14:402:45:437:538:31
8:31
+0:20
35K
21.75 mi13:20:402:51:437:546:00
8:01
-0:30
23M
23.00 mi13:30:553:01:587:5510:15
8:11
+0:10
24M
24.00 mi13:38:573:10:007:558:02
8:02
-0:09
40K
24.85 mi13:45:553:16:587:556:58
8:09
+0:07
25.2M
25.20 mi13:48:563:19:597:563:01
8:45
+0:36
Finish
26.22 mi13:56:483:27:517:567:52
7:43
-1:02

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

7:43 /mi

Average Pace

7:56 /mi

Slowest Pace

8:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:16:19

94% of race

Time at Steady Pace

11:32

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:56 /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 mi10:52:5724:007:4324:00
7:43
#14186
10K
6.21 mi11:17:1348:167:4624:16
7:49
#14488
15K
9.32 mi11:41:201:12:237:4624:07
7:46
#14345
20K
12.43 mi12:05:321:36:357:4624:12
7:47
#14015
Half
13.11 mi12:10:481:41:517:465:16
7:43
#13996
25K
15.53 mi12:29:452:00:487:4718:57
7:49
#13680
30K
18.64 mi12:55:022:26:057:5025:17
8:08
#13390
20M
20.00 mi13:06:092:37:127:5211:07
8:11
#13211
21M
21.00 mi13:14:402:45:437:538:31
8:31
#13013
35K
21.75 mi13:20:402:51:437:546:00
8:01
#12991
23M
23.00 mi13:30:553:01:587:5510:15
8:11
#12846
24M
24.00 mi13:38:573:10:007:558:02
8:02
#12776
40K
24.85 mi13:45:553:16:587:556:58
8:09
#12691
25.2M
25.20 mi13:48:563:19:597:563:01
8:45
#12639
Finish
26.22 mi13:56:483:27:517:567:52
7:43
#12541
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi141864022402214050(Top 49%)4042(Top 33%)4042(Top 74%)
10K6.21 mi3.10 mi14488-3024224-2024224-20214927(Top 53%)4486(Top 37%)4486(Top 82%)
15K9.32 mi3.11 mi14345+1434167+574167+5714050(Top 49%)4042(Top 33%)4042(Top 74%)
20K12.43 mi3.11 mi14015+3304010+1574010+15713204(Top 46%)3657(Top 30%)3657(Top 67%)
Half13.11 mi0.68 mi13996+194001+94001+913604(Top 48%)3826(Top 31%)3826(Top 70%)
25K15.53 mi2.42 mi13680+3163862+1393862+13912500(Top 44%)3395(Top 28%)3395(Top 62%)
30K18.64 mi3.11 mi13390+2903763+993763+9912365(Top 44%)3485(Top 29%)3485(Top 64%)
20M20.00 mi1.36 mi13211+1793699+643699+6411705(Top 41%)3303(Top 27%)3303(Top 60%)
21M21.00 mi1.00 mi13013+1983620+793620+7910618(Top 37%)2921(Top 24%)2921(Top 53%)
35K21.75 mi0.75 mi12991+223616+43616+412423(Top 44%)3858(Top 32%)3858(Top 71%)
23M23.00 mi1.25 mi12846+1453580+363580+3611304(Top 40%)3383(Top 28%)3383(Top 62%)
24M24.00 mi1.00 mi12776+703571+93571+911506(Top 41%)3568(Top 29%)3568(Top 65%)
40K24.85 mi0.85 mi12691+853556+153556+1511248(Top 40%)3532(Top 29%)3532(Top 65%)
25.2M25.20 mi0.35 mi12639+523541+153541+1510380(Top 37%)3216(Top 26%)3216(Top 59%)
Finish26.22 mi1.02 mi12541+983523+183523+1810880(Top 38%)3401(Top 28%)3401(Top 62%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21stories
+97ft-345ft

Overall

14050

Females

4042

F18-39

4042

5K→10K

3.1 - 6.2 mi

Top 53%
×5stories
+79ft-138ft

Overall

14927

Females

4486

F18-39

4486

10K→15K

6.2 - 9.3 mi

Top 49%
×3stories
+67ft-78ft

Overall

14050

Females

4042

F18-39

4042

15K→20K

9.3 - 12.4 mi

Top 46%
×5stories
+106ft-86ft

Overall

13204

Females

3657

F18-39

3657

20K→Half

12.4 - 13.1 mi

Top 48%
×2stories
+19ft-37ft

Overall

13604

Females

3826

F18-39

3826

Half→25K

13.1 - 15.5 mi

Top 44%
×4stories
+66ft-88ft

Overall

12500

Females

3395

F18-39

3395

25K→30K

15.5 - 18.6 mi

Top 44%
×9stories
+181ft-148ft

Overall

12365

Females

3485

F18-39

3485

30K→20M

18.6 - 20.0 mi

Top 41%
×5stories
+64ft-50ft

Overall

11705

Females

3303

F18-39

3303

20M→21M

20.0 - 21.0 mi

Top 37%
×8stories
+106ft-24ft

Overall

10618

Females

2921

F18-39

2921

21M→35K

21.0 - 21.8 mi

Top 44%
×7stories
+17ft-86ft

Overall

12423

Females

3858

F18-39

3858

35K→23M

21.8 - 23.0 mi

Top 40%
×5stories
+23ft-63ft

Overall

11304

Females

3383

F18-39

3383

23M→24M

23.0 - 24.0 mi

Top 41%
×6stories
+12ft-82ft

Overall

11506

Females

3568

F18-39

3568

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

11248

Females

3532

F18-39

3532

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

10380

Females

3216

F18-39

3216

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2stories
+22ft-21ft

Overall

10880

Females

3401

F18-39

3401

Passing Analysis

Category:
Athletes Passed
2696
Passed By
1051
Net Change
+1645
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14186
5K → 10K177479-302#14186#14488
10K → 15K270127+143#14488#14345
15K → 20K39363+330#14345#14015
20K → Half4223+19#14015#13996
Half → 25K34832+316#13996#13680
25K → 30K38191+290#13680#13390
30K → 20M20425+179#13390#13211
20M → 21M22022+198#13211#13013
21M → 35K6139+22#13013#12991
35K → 23M18338+145#12991#12846
23M → 24M11545+70#12846#12776
24M → 40K11631+85#12776#12691
40K → 25.2M597+52#12691#12639
25.2M → Finish12729+98#12639#12541
TOTALS26961051+1645
📊

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