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BOSTON MARATHON 2025

Xiaoyan Lu

Bib: 22890•F

NJ

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 40%
Division (F50-54)
#0 / 1303
Top 35%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:30/mi
26:24
↑ 97↓ 3451.5%
10K· 6.21 mi
8:27/mi
52:40
↑ 79↓ 1380.4%
15K· 9.32 mi
8:30/mi
1:19:06
↑ 67↓ 78
20K· 12.43 mi
8:31/mi
1:45:33
↑ 106↓ 860.1%
Half· 13.11 mi
8:21/mi
1:51:15
↑ 19↓ 370.5%
25K· 15.53 mi
8:30/mi
2:11:52
↑ 66↓ 880.2%
30K· 18.64 mi
8:42/mi
2:38:55
↑ 181↓ 1480.2%
20M
8:49/mi
2:50:54
↑ 64↓ 500.2%
21M
9:09/mi
3:00:03
↑ 106↓ 241.6%
35K· 21.75 mi
8:25/mi
3:06:21
↑ 17↓ 861.7%
23M
8:52/mi
3:17:27
↑ 23↓ 630.6%
24M
8:43/mi
3:26:10
↓ 821.3%
40K· 24.85 mi
8:53/mi
3:33:46
↓ 200.3%
25.2M
9:43/mi
3:37:07
↑ 13↓ 160.2%
Finish· 26.22 mi
8:42/mi
3:45:59
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:15
Pace8:29 /mi
2nd Half
Distance13.11 mi
Time1:54:44
Pace8:45 /mi
📊Positive Split: 3.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:5626:248:3026:24
8:30
-
10K
6.21 mi11:49:1252:408:2926:16
8:27
-0:03
15K
9.32 mi12:15:381:19:068:2926:26
8:30
+0:03
20K
12.43 mi12:42:051:45:338:3026:27
8:31
+0:01
Half
13.11 mi12:47:471:51:158:295:42
8:21
-0:10
25K
15.53 mi13:08:242:11:528:2920:37
8:30
+0:09
30K
18.64 mi13:35:272:38:558:3227:03
8:42
+0:12
20M
20.00 mi13:47:262:50:548:3311:59
8:49
+0:07
21M
21.00 mi13:56:353:00:038:349:09
9:09
+0:20
35K
21.75 mi14:02:533:06:218:346:18
8:25
-0:44
23M
23.00 mi14:13:593:17:278:3511:06
8:52
+0:27
24M
24.00 mi14:22:423:26:108:358:43
8:43
-0:09
40K
24.85 mi14:30:183:33:468:367:36
8:53
+0:10
25.2M
25.20 mi14:33:393:37:078:373:21
9:43
+0:50
Finish
26.22 mi14:42:313:45:598:388:52
8:42
-1:01

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

8:21 /mi

Average Pace

8:38 /mi

Slowest Pace

9:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:42:38

99% of race

Time at Steady Pace

3:21

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:37 /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 mi11:22:5626:248:3026:24
8:30
#19869
10K
6.21 mi11:49:1252:408:2926:16
8:27
#19686
15K
9.32 mi12:15:381:19:068:2926:26
8:30
#19574
20K
12.43 mi12:42:051:45:338:3026:27
8:31
#19222
Half
13.11 mi12:47:471:51:158:295:42
8:21
#19173
25K
15.53 mi13:08:242:11:528:2920:37
8:30
#18842
30K
18.64 mi13:35:272:38:558:3227:03
8:42
#18296
20M
20.00 mi13:47:262:50:548:3311:59
8:49
#18055
21M
21.00 mi13:56:353:00:038:349:09
9:09
#17848
35K
21.75 mi14:02:533:06:218:346:18
8:25
#17727
23M
23.00 mi14:13:593:17:278:3511:06
8:52
#17566
24M
24.00 mi14:22:423:26:108:358:43
8:43
#17481
40K
24.85 mi14:30:183:33:468:367:36
8:53
#17415
25.2M
25.20 mi14:33:393:37:078:373:21
9:43
#17393
Finish
26.22 mi14:42:313:45:598:388:52
8:42
#17379
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi198697428742819376(Top 68%)7105(Top 58%)7105(Top 545%)
10K6.21 mi3.10 mi19686+1837293+1357293+13519540(Top 69%)7193(Top 59%)7193(Top 552%)
15K9.32 mi3.11 mi19574+1127216+777216+7719376(Top 68%)7105(Top 58%)7105(Top 545%)
20K12.43 mi3.11 mi19222+3527035+1817035+18118343(Top 65%)6531(Top 53%)6531(Top 501%)
Half13.11 mi0.68 mi19173+497004+317004+3118338(Top 65%)6515(Top 53%)6515(Top 500%)
25K15.53 mi2.42 mi18842+3316822+1826822+18217237(Top 61%)5995(Top 49%)5995(Top 460%)
30K18.64 mi3.11 mi18296+5466558+2646558+26416054(Top 57%)5497(Top 45%)5497(Top 422%)
20M20.00 mi1.36 mi18055+2416455+1036455+10315796(Top 56%)5482(Top 45%)5482(Top 421%)
21M21.00 mi1.00 mi17848+2076347+1086347+10814387(Top 51%)4841(Top 40%)4841(Top 372%)
35K21.75 mi0.75 mi17727+1216298+496298+4915057(Top 53%)5274(Top 43%)5274(Top 405%)
23M23.00 mi1.25 mi17566+1616264+346264+3415513(Top 55%)5615(Top 46%)5615(Top 431%)
24M24.00 mi1.00 mi17481+856235+296235+2915862(Top 56%)5852(Top 48%)5852(Top 449%)
40K24.85 mi0.85 mi17415+666226+96226+915731(Top 55%)5915(Top 48%)5915(Top 454%)
25.2M25.20 mi0.35 mi17393+226224+26224+215757(Top 55%)5968(Top 49%)5968(Top 458%)
Finish26.22 mi1.02 mi17379+146244-206244-2017491(Top 62%)6813(Top 56%)6813(Top 523%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×21story building
+97ft-345ft

Overall

19376

Females

7105

F50-54

7105

5K→10K

3.1 - 6.2 mi

Top 69%
×5story building
+79ft-138ft

Overall

19540

Females

7193

F50-54

7193

10K→15K

6.2 - 9.3 mi

Top 68%
×3story building
+67ft-78ft

Overall

19376

Females

7105

F50-54

7105

15K→20K

9.3 - 12.4 mi

Top 65%
×5story building
+106ft-86ft

Overall

18343

Females

6531

F50-54

6531

20K→Half

12.4 - 13.1 mi

Top 65%
×2story building
+19ft-37ft

Overall

18338

Females

6515

F50-54

6515

Half→25K

13.1 - 15.5 mi

Top 61%
×4story building
+66ft-88ft

Overall

17237

Females

5995

F50-54

5995

25K→30K

15.5 - 18.6 mi

Top 57%
×9story building
+181ft-148ft

Overall

16054

Females

5497

F50-54

5497

30K→20M

18.6 - 20.0 mi

Top 56%
×5story building
+64ft-50ft

Overall

15796

Females

5482

F50-54

5482

20M→21M

20.0 - 21.0 mi

Top 51%
×8story building
+106ft-24ft

Overall

14387

Females

4841

F50-54

4841

21M→35K

21.0 - 21.8 mi

Top 53%
×7story building
+17ft-86ft

Overall

15057

Females

5274

F50-54

5274

35K→23M

21.8 - 23.0 mi

Top 55%
×5story building
+23ft-63ft

Overall

15513

Females

5615

F50-54

5615

23M→24M

23.0 - 24.0 mi

Top 56%
×6story building
+12ft-82ft

Overall

15862

Females

5852

F50-54

5852

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

15731

Females

5915

F50-54

5915

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

15757

Females

5968

F50-54

5968

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2story building
+22ft-21ft

Overall

17491

Females

6813

F50-54

6813

Passing Analysis

Category:
Athletes Passed
3150
Passed By
660
Net Change
+2490
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19869
5K → 10K373190+183#19869#19686
10K → 15K248136+112#19686#19574
15K → 20K39543+352#19574#19222
20K → Half6920+49#19222#19173
Half → 25K34716+331#19173#18842
25K → 30K57125+546#18842#18296
30K → 20M26423+241#18296#18055
20M → 21M22013+207#18055#17848
21M → 35K13312+121#17848#17727
35K → 23M20039+161#17727#17566
23M → 24M11530+85#17566#17481
24M → 40K10034+66#17481#17415
40K → 25.2M4018+22#17415#17393
25.2M → Finish7561+14#17393#17379
TOTALS3150660+2490
📊

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