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BOSTON MARATHON 2025

Janet Lee

Bib: 21063•F

OH

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 41%
Masters (Masters Women)
#0 / 6759
Top 27%
Division (F50-54)
#0 / 1303
Top 19%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:21
Rank: #17829
Start → 5K
25:21 | 8:10/mi
10K· 6.21 mi
50:46
Rank: #17768 (+61)
5K → 10K
25:25 | 8:11/mi
15K· 9.32 mi
1:15:58
Rank: #17439 (+329)
10K → 15K
25:12 | 8:07/mi
20K· 12.43 mi
1:41:12
Rank: #16992 (+447)
15K → 20K
25:14 | 8:07/mi
Half· 13.11 mi
1:46:37
Rank: #16916 (+76)
20K → Half
5:25 | 7:56/mi
25K· 15.53 mi
2:06:20
Rank: #16529 (+387)
Half → 25K
19:43 | 8:08/mi
30K· 18.64 mi
2:32:51
Rank: #16211 (+318)
25K → 30K
26:31 | 8:32/mi
20M
2:44:28
Rank: #16032 (+179)
30K → 20M
11:37 | 8:33/mi
21M
2:53:42
Rank: #15888 (+144)
20M → 21M
9:14 | 9:14/mi
35K· 21.75 mi
3:00:00
Rank: #15800 (+88)
21M → 35K
6:18 | 8:25/mi
23M
3:10:46
Rank: #15672 (+128)
35K → 23M
10:46 | 8:36/mi
24M
3:18:58
Rank: #15539 (+133)
23M → 24M
8:12 | 8:12/mi
40K· 24.85 mi
3:26:15
Rank: #15434 (+105)
24M → 40K
7:17 | 8:31/mi
25.2M
3:29:28
Rank: #15395 (+39)
40K → 25.2M
3:13 | 9:20/mi
Finish· 26.22 mi
3:37:44
Rank: #15321 (+74)
25.2M → Finish
8:16 | 8:07/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:37
Pace8:08 /mi
2nd Half
Distance13.11 mi
Time1:51:07
Pace8:29 /mi
📊Positive Split: 4.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:0725:218:1025:21
8:10
-
10K
6.21 mi11:45:3250:468:1025:25
8:11
+0:01
15K
9.32 mi12:10:441:15:588:0925:12
8:07
-0:04
20K
12.43 mi12:35:581:41:128:0925:14
8:07
0:00
Half
13.11 mi12:41:231:46:378:085:25
7:56
-0:11
25K
15.53 mi13:01:062:06:208:0819:43
8:08
+0:12
30K
18.64 mi13:27:372:32:518:1226:31
8:32
+0:24
20M
20.00 mi13:39:142:44:288:1311:37
8:33
+0:01
21M
21.00 mi13:48:282:53:428:169:14
9:14
+0:41
35K
21.75 mi13:54:463:00:008:176:18
8:25
-0:49
23M
23.00 mi14:05:323:10:468:1810:46
8:36
+0:11
24M
24.00 mi14:13:443:18:588:178:12
8:12
-0:24
40K
24.85 mi14:21:013:26:158:187:17
8:31
+0:19
25.2M
25.20 mi14:24:143:29:288:193:13
9:20
+0:49
Finish
26.22 mi14:32:303:37:448:198:16
8:07
-1:13

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

7:56 /mi

Average Pace

8:19 /mi

Slowest Pace

9:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:25:17

94% of race

Time at Steady Pace

12:27

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:18 /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 mi11:20:0725:218:1025:21
8:10
#17829
10K
6.21 mi11:45:3250:468:1025:25
8:11
#17768
15K
9.32 mi12:10:441:15:588:0925:12
8:07
#17439
20K
12.43 mi12:35:581:41:128:0925:14
8:07
#16992
Half
13.11 mi12:41:231:46:378:085:25
7:56
#16916
25K
15.53 mi13:01:062:06:208:0819:43
8:08
#16529
30K
18.64 mi13:27:372:32:518:1226:31
8:32
#16211
20M
20.00 mi13:39:142:44:288:1311:37
8:33
#16032
21M
21.00 mi13:48:282:53:428:169:14
9:14
#15888
35K
21.75 mi13:54:463:00:008:176:18
8:25
#15800
23M
23.00 mi14:05:323:10:468:1810:46
8:36
#15672
24M
24.00 mi14:13:443:18:588:178:12
8:12
#15539
40K
24.85 mi14:21:013:26:158:187:17
8:31
#15434
25.2M
25.20 mi14:24:143:29:288:193:13
9:20
#15395
Finish
26.22 mi14:32:303:37:448:198:16
8:07
#15321
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi178296233623316815(Top 59%)5618(Top 46%)5618(Top 431%)
10K6.21 mi3.10 mi17768+616183+506183+5017757(Top 63%)6150(Top 50%)6150(Top 472%)
15K9.32 mi3.11 mi17439+3295974+2095974+20916815(Top 59%)5618(Top 46%)5618(Top 431%)
20K12.43 mi3.11 mi16992+4475735+2395735+23915809(Top 56%)5103(Top 42%)5103(Top 392%)
Half13.11 mi0.68 mi16916+765690+455690+4515491(Top 55%)4891(Top 40%)4891(Top 375%)
25K15.53 mi2.42 mi16529+3875476+2145476+21414861(Top 52%)4679(Top 38%)4679(Top 359%)
30K18.64 mi3.11 mi16211+3185347+1295347+12914986(Top 53%)4898(Top 40%)4898(Top 376%)
20M20.00 mi1.36 mi16032+1795285+625285+6214115(Top 50%)4579(Top 37%)4579(Top 351%)
21M21.00 mi1.00 mi15888+1445242+435242+4314831(Top 52%)5071(Top 41%)5071(Top 389%)
35K21.75 mi0.75 mi15800+885209+335209+3315018(Top 53%)5235(Top 43%)5235(Top 402%)
23M23.00 mi1.25 mi15672+1285175+345175+3413944(Top 49%)4774(Top 39%)4774(Top 366%)
24M24.00 mi1.00 mi15539+1335110+655110+6512616(Top 44%)4127(Top 34%)4127(Top 317%)
40K24.85 mi0.85 mi15434+1055089+215089+2113587(Top 48%)4753(Top 39%)4753(Top 365%)
25.2M25.20 mi0.35 mi15395+395077+125077+1213674(Top 48%)4854(Top 40%)4854(Top 373%)
Finish26.22 mi1.02 mi15321+745057+205057+2013708(Top 48%)4806(Top 39%)4806(Top 369%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21stories
+97ft-345ft

Overall

16815

Females

5618

F50-54

5618

5K→10K

3.1 - 6.2 mi

Top 63%
×5stories
+79ft-138ft

Overall

17757

Females

6150

F50-54

6150

10K→15K

6.2 - 9.3 mi

Top 59%
×3stories
+67ft-78ft

Overall

16815

Females

5618

F50-54

5618

15K→20K

9.3 - 12.4 mi

Top 56%
×5stories
+106ft-86ft

Overall

15809

Females

5103

F50-54

5103

20K→Half

12.4 - 13.1 mi

Top 55%
×2stories
+19ft-37ft

Overall

15491

Females

4891

F50-54

4891

Half→25K

13.1 - 15.5 mi

Top 52%
×4stories
+66ft-88ft

Overall

14861

Females

4679

F50-54

4679

25K→30K

15.5 - 18.6 mi

Top 53%
×9stories
+181ft-148ft

Overall

14986

Females

4898

F50-54

4898

30K→20M

18.6 - 20.0 mi

Top 50%
×5stories
+64ft-50ft

Overall

14115

Females

4579

F50-54

4579

20M→21M

20.0 - 21.0 mi

Top 52%
×8stories
+106ft-24ft

Overall

14831

Females

5071

F50-54

5071

21M→35K

21.0 - 21.8 mi

Top 53%
×7stories
+17ft-86ft

Overall

15018

Females

5235

F50-54

5235

35K→23M

21.8 - 23.0 mi

Top 49%
×5stories
+23ft-63ft

Overall

13944

Females

4774

F50-54

4774

23M→24M

23.0 - 24.0 mi

Top 44%
×6stories
+12ft-82ft

Overall

12616

Females

4127

F50-54

4127

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

13587

Females

4753

F50-54

4753

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

13674

Females

4854

F50-54

4854

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2stories
+22ft-21ft

Overall

13708

Females

4806

F50-54

4806

Passing Analysis

Category:
Athletes Passed
3143
Passed By
635
Net Change
+2508
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17829
5K → 10K316255+61#17829#17768
10K → 15K39768+329#17768#17439
15K → 20K46619+447#17439#16992
20K → Half837+76#16992#16916
Half → 25K39811+387#16916#16529
25K → 30K39476+318#16529#16211
30K → 20M20728+179#16211#16032
20M → 21M18743+144#16032#15888
21M → 35K11123+88#15888#15800
35K → 23M16739+128#15800#15672
23M → 24M14613+133#15672#15539
24M → 40K12419+105#15539#15434
40K → 25.2M489+39#15434#15395
25.2M → Finish9925+74#15395#15321
TOTALS3143635+2508
📊

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