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BOSTON MARATHON 2025

Juan Li

Bib: 24891•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 48%
Division (F55-59)
#0 / 994
Top 29%
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
8:56/mi
27:45
↑ 97↓ 3451.5%
10K· 6.21 mi
8:47/mi
55:02
↑ 79↓ 1380.4%
15K· 9.32 mi
8:42/mi
1:22:04
↑ 67↓ 78
20K· 12.43 mi
8:41/mi
1:49:02
↑ 106↓ 860.1%
Half· 13.11 mi
8:33/mi
1:54:52
↑ 19↓ 370.5%
25K· 15.53 mi
8:47/mi
2:16:09
↑ 66↓ 880.2%
30K· 18.64 mi
9:07/mi
2:44:30
↑ 181↓ 1480.2%
20M
9:02/mi
2:56:46
↑ 64↓ 500.2%
21M
9:32/mi
3:06:18
↑ 106↓ 241.6%
35K· 21.75 mi
8:29/mi
3:12:39
↑ 17↓ 861.7%
23M
8:49/mi
3:23:41
↑ 23↓ 630.6%
24M
8:31/mi
3:32:12
↓ 821.3%
40K· 24.85 mi
8:45/mi
3:39:41
↓ 200.3%
25.2M
9:40/mi
3:43:01
↑ 13↓ 160.2%
Finish· 26.22 mi
8:37/mi
3:51:48
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:52
Pace8:46 /mi
2nd Half
Distance13.11 mi
Time1:56:56
Pace8:55 /mi
📊Positive Split: 1.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:27:2227:458:5627:45
8:56
-
10K
6.21 mi11:54:3955:028:5127:17
8:47
-0:09
15K
9.32 mi12:21:411:22:048:4827:02
8:42
-0:05
20K
12.43 mi12:48:391:49:028:4626:58
8:41
-0:01
Half
13.11 mi12:54:291:54:528:465:50
8:33
-0:08
25K
15.53 mi13:15:462:16:098:4621:17
8:47
+0:14
30K
18.64 mi13:44:072:44:308:4928:21
9:07
+0:20
20M
20.00 mi13:56:232:56:468:5012:16
9:02
-0:05
21M
21.00 mi14:05:553:06:188:529:32
9:32
+0:30
35K
21.75 mi14:12:163:12:398:516:21
8:29
-1:03
23M
23.00 mi14:23:183:23:418:5111:02
8:49
+0:20
24M
24.00 mi14:31:493:32:128:518:31
8:31
-0:18
40K
24.85 mi14:39:183:39:418:507:29
8:45
+0:14
25.2M
25.20 mi14:42:383:43:018:513:20
9:40
+0:55
Finish
26.22 mi14:51:253:51:488:518:47
8:37
-1:03

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

8:29 /mi

Average Pace

8:51 /mi

Slowest Pace

9:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:38:56

94% of race

Time at Steady Pace

12:52

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:50 /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 mi11:27:2227:458:5627:45
8:56
#22143
10K
6.21 mi11:54:3955:028:5127:17
8:47
#21738
15K
9.32 mi12:21:411:22:048:4827:02
8:42
#21294
20K
12.43 mi12:48:391:49:028:4626:58
8:41
#20788
Half
13.11 mi12:54:291:54:528:465:50
8:33
#20734
25K
15.53 mi13:15:462:16:098:4621:17
8:47
#20434
30K
18.64 mi13:44:072:44:308:4928:21
9:07
#20016
20M
20.00 mi13:56:232:56:468:5012:16
9:02
#19763
21M
21.00 mi14:05:553:06:188:529:32
9:32
#19550
35K
21.75 mi14:12:163:12:398:516:21
8:29
#19412
23M
23.00 mi14:23:183:23:418:5111:02
8:49
#19178
24M
24.00 mi14:31:493:32:128:518:31
8:31
#19001
40K
24.85 mi14:39:183:39:418:507:29
8:45
#18829
25.2M
25.20 mi14:42:383:43:018:513:20
9:40
#18785
Finish
26.22 mi14:51:253:51:488:518:47
8:37
#18702
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi221438703870320500(Top 72%)7710(Top 63%)7710(Top 776%)
10K6.21 mi3.10 mi21738+4058463+2408463+24021322(Top 75%)8205(Top 67%)8205(Top 825%)
15K9.32 mi3.11 mi21294+4448198+2658198+26520500(Top 72%)7710(Top 63%)7710(Top 776%)
20K12.43 mi3.11 mi20788+5067920+2787920+27819329(Top 68%)7097(Top 58%)7097(Top 714%)
Half13.11 mi0.68 mi20734+547890+307890+3019557(Top 69%)7213(Top 59%)7213(Top 726%)
25K15.53 mi2.42 mi20434+3007732+1587732+15818819(Top 66%)6882(Top 56%)6882(Top 692%)
30K18.64 mi3.11 mi20016+4187535+1977535+19718299(Top 64%)6744(Top 55%)6744(Top 678%)
20M20.00 mi1.36 mi19763+2537413+1227413+12216963(Top 60%)6122(Top 50%)6122(Top 616%)
21M21.00 mi1.00 mi19550+2137315+987315+9816256(Top 57%)5852(Top 48%)5852(Top 589%)
35K21.75 mi0.75 mi19412+1387254+617254+6115459(Top 54%)5515(Top 45%)5515(Top 555%)
23M23.00 mi1.25 mi19178+2347147+1077147+10715214(Top 54%)5454(Top 45%)5454(Top 549%)
24M24.00 mi1.00 mi19001+1777068+797068+7914673(Top 52%)5209(Top 43%)5209(Top 524%)
40K24.85 mi0.85 mi18829+1727005+637005+6314965(Top 53%)5510(Top 45%)5510(Top 554%)
25.2M25.20 mi0.35 mi18785+446993+126993+1215533(Top 55%)5857(Top 48%)5857(Top 589%)
Finish26.22 mi1.02 mi18702+836962+316962+3117004(Top 60%)6572(Top 54%)6572(Top 661%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21story building
+97ft-345ft

Overall

20500

Females

7710

F55-59

7710

5K→10K

3.1 - 6.2 mi

Top 75%
×5story building
+79ft-138ft

Overall

21322

Females

8205

F55-59

8205

10K→15K

6.2 - 9.3 mi

Top 72%
×3story building
+67ft-78ft

Overall

20500

Females

7710

F55-59

7710

15K→20K

9.3 - 12.4 mi

Top 68%
×5story building
+106ft-86ft

Overall

19329

Females

7097

F55-59

7097

20K→Half

12.4 - 13.1 mi

Top 69%
×2story building
+19ft-37ft

Overall

19557

Females

7213

F55-59

7213

Half→25K

13.1 - 15.5 mi

Top 66%
×4story building
+66ft-88ft

Overall

18819

Females

6882

F55-59

6882

25K→30K

15.5 - 18.6 mi

Top 64%
×9story building
+181ft-148ft

Overall

18299

Females

6744

F55-59

6744

30K→20M

18.6 - 20.0 mi

Top 60%
×5story building
+64ft-50ft

Overall

16963

Females

6122

F55-59

6122

20M→21M

20.0 - 21.0 mi

Top 57%
×8story building
+106ft-24ft

Overall

16256

Females

5852

F55-59

5852

21M→35K

21.0 - 21.8 mi

Top 54%
×7story building
+17ft-86ft

Overall

15459

Females

5515

F55-59

5515

35K→23M

21.8 - 23.0 mi

Top 54%
×5story building
+23ft-63ft

Overall

15214

Females

5454

F55-59

5454

23M→24M

23.0 - 24.0 mi

Top 52%
×6story building
+12ft-82ft

Overall

14673

Females

5209

F55-59

5209

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

14965

Females

5510

F55-59

5510

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

15533

Females

5857

F55-59

5857

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2story building
+22ft-21ft

Overall

17004

Females

6572

F55-59

6572

Passing Analysis

Category:
Athletes Passed
3786
Passed By
345
Net Change
+3441
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22143
5K → 10K509104+405#22143#21738
10K → 15K50258+444#21738#21294
15K → 20K52418+506#21294#20788
20K → Half6410+54#20788#20734
Half → 25K32525+300#20734#20434
25K → 30K46850+418#20434#20016
30K → 20M2618+253#20016#19763
20M → 21M23118+213#19763#19550
21M → 35K1435+138#19550#19412
35K → 23M2406+234#19412#19178
23M → 24M1836+177#19178#19001
24M → 40K1775+172#19001#18829
40K → 25.2M484+44#18829#18785
25.2M → Finish11128+83#18785#18702
TOTALS3786345+3441
📊

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