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BOSTON MARATHON 2025

Pui-Yu Lee

Bib: 22545•F

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:15
Rank: #17571
Start → 5K
25:15 | 8:08/mi
10K· 6.21 mi
50:48
Rank: #17817 (-246)
5K → 10K
25:33 | 8:13/mi
15K· 9.32 mi
1:16:54
Rank: #18115 (-298)
10K → 15K
26:06 | 8:24/mi
20K· 12.43 mi
1:43:57
Rank: #18418 (-303)
15K → 20K
27:03 | 8:42/mi
Half· 13.11 mi
1:49:50
Rank: #18509 (-91)
20K → Half
5:53 | 8:37/mi
25K· 15.53 mi
2:12:10
Rank: #18950 (-441)
Half → 25K
22:20 | 9:13/mi
30K· 18.64 mi
2:42:20
Rank: #19364 (-414)
25K → 30K
30:10 | 9:43/mi
20M
2:55:45
Rank: #19500 (-136)
30K → 20M
13:25 | 9:52/mi
21M
3:06:37
Rank: #19638 (-138)
20M → 21M
10:52 | 10:52/mi
35K· 21.75 mi
3:13:46
Rank: #19678 (-40)
21M → 35K
7:09 | 9:33/mi
23M
3:25:34
Rank: #19595 (+83)
35K → 23M
11:48 | 9:25/mi
24M
3:34:58
Rank: #19584 (+11)
23M → 24M
9:24 | 9:24/mi
40K· 24.85 mi
3:43:02
Rank: #19532 (+52)
24M → 40K
8:04 | 9:26/mi
25.2M
3:46:34
Rank: #19509 (+23)
40K → 25.2M
3:32 | 10:15/mi
Finish· 26.22 mi
3:55:43
Rank: #19500 (+9)
25.2M → Finish
9:09 | 8:59/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:50
Pace8:23 /mi
2nd Half
Distance13.11 mi
Time2:05:53
Pace9:36 /mi
📊Positive Split: 14.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:4025:158:0825:15
8:08
-
10K
6.21 mi11:47:1350:488:1125:33
8:13
+0:05
15K
9.32 mi12:13:191:16:548:1526:06
8:24
+0:11
20K
12.43 mi12:40:221:43:578:2227:03
8:42
+0:18
Half
13.11 mi12:46:151:49:508:235:53
8:37
-0:05
25K
15.53 mi13:08:352:12:108:3022:20
9:13
+0:36
30K
18.64 mi13:38:452:42:208:4330:10
9:43
+0:30
20M
20.00 mi13:52:102:55:458:4713:25
9:52
+0:09
21M
21.00 mi14:03:023:06:378:5310:52
10:52
+1:00
35K
21.75 mi14:10:113:13:468:557:09
9:33
-1:19
23M
23.00 mi14:21:593:25:348:5611:48
9:25
-0:08
24M
24.00 mi14:31:233:34:588:579:24
9:24
-0:01
40K
24.85 mi14:39:273:43:028:588:04
9:26
+0:02
25.2M
25.20 mi14:42:593:46:348:593:32
10:15
+0:49
Finish
26.22 mi14:52:083:55:439:009:09
8:59
-1:16

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

8:08 /mi

Average Pace

9:00 /mi

Slowest Pace

10:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:58:59

50% of race

Time at Steady Pace

1:28:55

38% of race

Time at Slower Pace

27:49

12% of race

Average Pace: 8:59 /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 mi11:21:4025:158:0825:15
8:08
#17571
10K
6.21 mi11:47:1350:488:1125:33
8:13
#17817
15K
9.32 mi12:13:191:16:548:1526:06
8:24
#18115
20K
12.43 mi12:40:221:43:578:2227:03
8:42
#18418
Half
13.11 mi12:46:151:49:508:235:53
8:37
#18509
25K
15.53 mi13:08:352:12:108:3022:20
9:13
#18950
30K
18.64 mi13:38:452:42:208:4330:10
9:43
#19364
20M
20.00 mi13:52:102:55:458:4713:25
9:52
#19500
21M
21.00 mi14:03:023:06:378:5310:52
10:52
#19638
35K
21.75 mi14:10:113:13:468:557:09
9:33
#19678
23M
23.00 mi14:21:593:25:348:5611:48
9:25
#19595
24M
24.00 mi14:31:233:34:588:579:24
9:24
#19584
40K
24.85 mi14:39:273:43:028:588:04
9:26
#19532
25.2M
25.20 mi14:42:593:46:348:593:32
10:15
#19509
Finish
26.22 mi14:52:083:55:439:009:09
8:59
#19500
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi175716078607818730(Top 66%)6743(Top 55%)6743(Top 517%)
10K6.21 mi3.10 mi17817-2466220-1426220-14218085(Top 64%)6354(Top 52%)6354(Top 488%)
15K9.32 mi3.11 mi18115-2986398-1786398-17818730(Top 66%)6743(Top 55%)6743(Top 517%)
20K12.43 mi3.11 mi18418-3036579-1816579-18119449(Top 68%)7174(Top 59%)7174(Top 551%)
Half13.11 mi0.68 mi18509-916623-446623-4419969(Top 70%)7457(Top 61%)7457(Top 572%)
25K15.53 mi2.42 mi18950-4416890-2676890-26720809(Top 73%)7980(Top 65%)7980(Top 612%)
30K18.64 mi3.11 mi19364-4147168-2787168-27820719(Top 73%)8062(Top 66%)8062(Top 619%)
20M20.00 mi1.36 mi19500-1367267-997267-9920532(Top 72%)8096(Top 66%)8096(Top 621%)
21M21.00 mi1.00 mi19638-1387368-1017368-10121044(Top 74%)8465(Top 69%)8465(Top 650%)
35K21.75 mi0.75 mi19678-407401-337401-3320534(Top 72%)8252(Top 67%)8252(Top 633%)
23M23.00 mi1.25 mi19595+837396+57396+518363(Top 65%)7170(Top 59%)7170(Top 550%)
24M24.00 mi1.00 mi19584+117413-177413-1719248(Top 68%)7676(Top 63%)7676(Top 589%)
40K24.85 mi0.85 mi19532+527394+197394+1918456(Top 65%)7364(Top 60%)7364(Top 565%)
25.2M25.20 mi0.35 mi19509+237395-17395-118144(Top 64%)7219(Top 59%)7219(Top 554%)
Finish26.22 mi1.02 mi19500+97409-147409-1418944(Top 67%)7565(Top 62%)7565(Top 581%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21stories
+97ft-345ft

Overall

18730

Females

6743

F50-54

6743

5K→10K

3.1 - 6.2 mi

Top 64%
×5stories
+79ft-138ft

Overall

18085

Females

6354

F50-54

6354

10K→15K

6.2 - 9.3 mi

Top 66%
×3stories
+67ft-78ft

Overall

18730

Females

6743

F50-54

6743

15K→20K

9.3 - 12.4 mi

Top 68%
×5stories
+106ft-86ft

Overall

19449

Females

7174

F50-54

7174

20K→Half

12.4 - 13.1 mi

Top 70%
×2stories
+19ft-37ft

Overall

19969

Females

7457

F50-54

7457

Half→25K

13.1 - 15.5 mi

Top 73%
×4stories
+66ft-88ft

Overall

20809

Females

7980

F50-54

7980

25K→30K

15.5 - 18.6 mi

Top 73%
×9stories
+181ft-148ft

Overall

20719

Females

8062

F50-54

8062

30K→20M

18.6 - 20.0 mi

Top 72%
×5stories
+64ft-50ft

Overall

20532

Females

8096

F50-54

8096

20M→21M

20.0 - 21.0 mi

Top 74%
×8stories
+106ft-24ft

Overall

21044

Females

8465

F50-54

8465

21M→35K

21.0 - 21.8 mi

Top 72%
×7stories
+17ft-86ft

Overall

20534

Females

8252

F50-54

8252

35K→23M

21.8 - 23.0 mi

Top 65%
×5stories
+23ft-63ft

Overall

18363

Females

7170

F50-54

7170

23M→24M

23.0 - 24.0 mi

Top 68%
×6stories
+12ft-82ft

Overall

19248

Females

7676

F50-54

7676

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

18456

Females

7364

F50-54

7364

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1story
+13ft-16ft

Overall

18144

Females

7219

F50-54

7219

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2stories
+22ft-21ft

Overall

18944

Females

7565

F50-54

7565

Passing Analysis

Category:
Athletes Passed
1141
Passed By
3070
Net Change
-1929
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17571
5K → 10K184430-246#17571#17817
10K → 15K101399-298#17817#18115
15K → 20K114417-303#18115#18418
20K → Half9100-91#18418#18509
Half → 25K73514-441#18509#18950
25K → 30K111525-414#18950#19364
30K → 20M71207-136#19364#19500
20M → 21M67205-138#19500#19638
21M → 35K2868-40#19638#19678
35K → 23M13350+83#19678#19595
23M → 24M7059+11#19595#19584
24M → 40K8028+52#19584#19532
40K → 25.2M4017+23#19532#19509
25.2M → Finish6051+9#19509#19500
TOTALS11413070-1929
📊

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