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BOSTON MARATHON 2025

Nora Li

Bib: 30836•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
32:22
Rank: #26578
Start → 5K
32:22 | 10:25/mi
10K· 6.21 mi
1:04:46
Rank: #26345 (+233)
5K → 10K
32:24 | 10:26/mi
15K· 9.32 mi
1:35:54
Rank: #25894 (+451)
10K → 15K
31:08 | 10:01/mi
20K· 12.43 mi
2:08:15
Rank: #25643 (+251)
15K → 20K
32:21 | 10:25/mi
Half· 13.11 mi
2:15:03
Rank: #25607 (+36)
20K → Half
6:48 | 9:58/mi
25K· 15.53 mi
2:41:38
Rank: #25524 (+83)
Half → 25K
26:35 | 10:58/mi
30K· 18.64 mi
3:21:26
Rank: #25764 (-240)
25K → 30K
39:48 | 12:49/mi
20M
3:39:09
Rank: #25831 (-67)
30K → 20M
17:43 | 13:02/mi
21M
3:53:42
Rank: #25931 (-100)
20M → 21M
14:33 | 14:33/mi
35K· 21.75 mi
4:01:53
Rank: #25879 (+52)
21M → 35K
8:11 | 10:56/mi
23M
4:17:35
Rank: #25904 (-25)
35K → 23M
15:42 | 12:32/mi
24M
4:29:25
Rank: #25899 (+5)
23M → 24M
11:50 | 11:50/mi
40K· 24.85 mi
4:40:24
Rank: #25926 (-27)
24M → 40K
10:59 | 12:51/mi
25.2M
4:45:18
Rank: #25940 (-14)
40K → 25.2M
4:54 | 14:13/mi
Finish· 26.22 mi
4:56:43
Rank: #25957 (-17)
25.2M → Finish
11:25 | 11:12/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:15:03
Pace10:18 /mi
2nd Half
Distance13.11 mi
Time2:41:40
Pace12:20 /mi
📊Positive Split: 19.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:5332:2210:2532:22
10:25
-
10K
6.21 mi12:26:171:04:4610:2532:24
10:26
+0:01
15K
9.32 mi12:57:251:35:5410:1731:08
10:01
-0:25
20K
12.43 mi13:29:462:08:1510:1932:21
10:25
+0:24
Half
13.11 mi13:36:342:15:0310:186:48
9:58
-0:27
25K
15.53 mi14:03:092:41:3810:2426:35
10:58
+1:00
30K
18.64 mi14:42:573:21:2610:4839:48
12:49
+1:51
20M
20.00 mi15:00:403:39:0910:5717:43
13:02
+0:13
21M
21.00 mi15:15:133:53:4211:0814:33
14:33
+1:31
35K
21.75 mi15:23:244:01:5311:078:11
10:56
-3:37
23M
23.00 mi15:39:064:17:3511:1215:42
12:32
+1:36
24M
24.00 mi15:50:564:29:2511:1411:50
11:50
-0:42
40K
24.85 mi16:01:554:40:2411:1710:59
12:51
+1:01
25.2M
25.20 mi16:06:494:45:1811:194:54
14:13
+1:22
Finish
26.22 mi16:18:144:56:4311:2011:25
11:12
-3:01

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

9:58 /mi

Average Pace

11:20 /mi

Slowest Pace

14:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:15:03

46% of race

Time at Steady Pace

58:01

20% of race

Time at Slower Pace

1:43:39

35% of race

Average Pace: 11:19 /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 mi11:53:5332:2210:2532:22
10:25
#26578
10K
6.21 mi12:26:171:04:4610:2532:24
10:26
#26345
15K
9.32 mi12:57:251:35:5410:1731:08
10:01
#25894
20K
12.43 mi13:29:462:08:1510:1932:21
10:25
#25643
Half
13.11 mi13:36:342:15:0310:186:48
9:58
#25607
25K
15.53 mi14:03:092:41:3810:2426:35
10:58
#25524
30K
18.64 mi14:42:573:21:2610:4839:48
12:49
#25764
20M
20.00 mi15:00:403:39:0910:5717:43
13:02
#25831
21M
21.00 mi15:15:133:53:4211:0814:33
14:33
#25931
35K
21.75 mi15:23:244:01:5311:078:11
10:56
#25879
23M
23.00 mi15:39:064:17:3511:1215:42
12:32
#25904
24M
24.00 mi15:50:564:29:2511:1411:50
11:50
#25899
40K
24.85 mi16:01:554:40:2411:1710:59
12:51
#25926
25.2M
25.20 mi16:06:494:45:1811:194:54
14:13
#25940
Finish
26.22 mi16:18:144:56:4311:2011:25
11:12
#25957
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi26578110881108825027(Top 88%)10229(Top 84%)10229(Top 187%)
10K6.21 mi3.10 mi26345+23310960+12810960+12826143(Top 92%)10873(Top 89%)10873(Top 199%)
15K9.32 mi3.11 mi25894+45110718+24210718+24225027(Top 88%)10229(Top 84%)10229(Top 187%)
20K12.43 mi3.11 mi25643+25110587+13110587+13125045(Top 88%)10285(Top 84%)10285(Top 188%)
Half13.11 mi0.68 mi25607+3610564+2310564+2324739(Top 87%)10136(Top 83%)10136(Top 185%)
25K15.53 mi2.42 mi25524+8310533+3110533+3125153(Top 89%)10377(Top 85%)10377(Top 190%)
30K18.64 mi3.11 mi25764-24010700-16710700-16726495(Top 93%)11219(Top 92%)11219(Top 205%)
20M20.00 mi1.36 mi25831-6710748-4810748-4826468(Top 93%)11264(Top 92%)11264(Top 206%)
21M21.00 mi1.00 mi25931-10010806-5810806-5826744(Top 94%)11442(Top 94%)11442(Top 209%)
35K21.75 mi0.75 mi25879+5210786+2010786+2024057(Top 85%)10097(Top 83%)10097(Top 185%)
23M23.00 mi1.25 mi25904-2510808-2210808-2225838(Top 91%)11022(Top 90%)11022(Top 202%)
24M24.00 mi1.00 mi25899+510816-810816-825447(Top 90%)10854(Top 89%)10854(Top 198%)
40K24.85 mi0.85 mi25926-2710838-2210838-2226119(Top 92%)11197(Top 92%)11197(Top 205%)
25.2M25.20 mi0.35 mi25940-1410852-1410852-1426461(Top 93%)11414(Top 93%)11414(Top 209%)
Finish26.22 mi1.02 mi25957-1710870-1810870-1825691(Top 90%)10995(Top 90%)10995(Top 201%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
×21stories
+97ft-345ft

Overall

25027

Females

10229

F18-39

10229

5K→10K

3.1 - 6.2 mi

Top 92%
×5stories
+79ft-138ft

Overall

26143

Females

10873

F18-39

10873

10K→15K

6.2 - 9.3 mi

Top 88%
×3stories
+67ft-78ft

Overall

25027

Females

10229

F18-39

10229

15K→20K

9.3 - 12.4 mi

Top 88%
×5stories
+106ft-86ft

Overall

25045

Females

10285

F18-39

10285

20K→Half

12.4 - 13.1 mi

Top 87%
×2stories
+19ft-37ft

Overall

24739

Females

10136

F18-39

10136

Half→25K

13.1 - 15.5 mi

Top 89%
×4stories
+66ft-88ft

Overall

25153

Females

10377

F18-39

10377

25K→30K

15.5 - 18.6 mi

Top 93%
×9stories
+181ft-148ft

Overall

26495

Females

11219

F18-39

11219

30K→20M

18.6 - 20.0 mi

Top 93%
×5stories
+64ft-50ft

Overall

26468

Females

11264

F18-39

11264

20M→21M

20.0 - 21.0 mi

Top 94%
×8stories
+106ft-24ft

Overall

26744

Females

11442

F18-39

11442

21M→35K

21.0 - 21.8 mi

Top 85%
×7stories
+17ft-86ft

Overall

24057

Females

10097

F18-39

10097

35K→23M

21.8 - 23.0 mi

Top 91%
×5stories
+23ft-63ft

Overall

25838

Females

11022

F18-39

11022

23M→24M

23.0 - 24.0 mi

Top 90%
×6stories
+12ft-82ft

Overall

25447

Females

10854

F18-39

10854

24M→40K

24.0 - 24.9 mi

Top 92%
×1story
+6ft-20ft

Overall

26119

Females

11197

F18-39

11197

40K→25.2M

24.9 - 25.2 mi

Top 93%
×1story
+13ft-16ft

Overall

26461

Females

11414

F18-39

11414

25.2M→Finish

25.2 - 26.2 mi

Top 90%
×2stories
+22ft-21ft

Overall

25691

Females

10995

F18-39

10995

Passing Analysis

Category:
Athletes Passed
1485
Passed By
864
Net Change
+621
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26578
5K → 10K31481+233#26578#26345
10K → 15K4576+451#26345#25894
15K → 20K26615+251#25894#25643
20K → Half360+36#25643#25607
Half → 25K14764+83#25607#25524
25K → 30K54294-240#25524#25764
30K → 20M3299-67#25764#25831
20M → 21M15115-100#25831#25931
21M → 35K597+52#25931#25879
35K → 23M2651-25#25879#25904
23M → 24M3227+5#25904#25899
24M → 40K1946-27#25899#25926
40K → 25.2M1024-14#25926#25940
25.2M → Finish1835-17#25940#25957
TOTALS1485864+621
📊

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