Boston Marathon logo
BOSTON MARATHON 2025

Ya-Hui Lee

Bib: 22469•F

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 45%
Division (F50-54)
#0 / 1303
Top 41%
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
8:10/mi
25:23
↑ 97↓ 3451.5%
10K· 6.21 mi
8:22/mi
51:23
↑ 79↓ 1380.4%
15K· 9.32 mi
8:43/mi
1:18:28
↑ 67↓ 78
20K· 12.43 mi
8:51/mi
1:45:59
↑ 106↓ 860.1%
Half· 13.11 mi
8:32/mi
1:51:48
↑ 19↓ 370.5%
25K· 15.53 mi
8:45/mi
2:13:01
↑ 66↓ 880.2%
30K· 18.64 mi
9:07/mi
2:41:22
↑ 181↓ 1480.2%
20M
9:02/mi
2:53:38
↑ 64↓ 500.2%
21M
9:39/mi
3:03:17
↑ 106↓ 241.6%
35K· 21.75 mi
8:32/mi
3:09:40
↑ 17↓ 861.7%
23M
8:58/mi
3:20:53
↑ 23↓ 630.6%
24M
8:40/mi
3:29:33
↓ 821.3%
40K· 24.85 mi
8:56/mi
3:37:11
↓ 200.3%
25.2M
9:49/mi
3:40:34
↑ 13↓ 160.2%
Finish· 26.22 mi
8:32/mi
3:49:16
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:48
Pace8:32 /mi
2nd Half
Distance13.11 mi
Time1:57:28
Pace8:58 /mi
📊Positive Split: 5.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:5525:238:1025:23
8:10
-
10K
6.21 mi11:45:5551:238:1626:00
8:22
+0:12
15K
9.32 mi12:13:001:18:288:2527:05
8:43
+0:21
20K
12.43 mi12:40:311:45:598:3227:31
8:51
+0:08
Half
13.11 mi12:46:201:51:488:325:49
8:32
-0:19
25K
15.53 mi13:07:332:13:018:3421:13
8:45
+0:13
30K
18.64 mi13:35:542:41:228:3928:21
9:07
+0:22
20M
20.00 mi13:48:102:53:388:4112:16
9:02
-0:05
21M
21.00 mi13:57:493:03:178:449:39
9:39
+0:37
35K
21.75 mi14:04:123:09:408:436:23
8:32
-1:07
23M
23.00 mi14:15:253:20:538:4411:13
8:58
+0:26
24M
24.00 mi14:24:053:29:338:448:40
8:40
-0:18
40K
24.85 mi14:31:433:37:118:447:38
8:56
+0:16
25.2M
25.20 mi14:35:063:40:348:453:23
9:49
+0:53
Finish
26.22 mi14:43:483:49:168:458:42
8:32
-1:17

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

8:10 /mi

Average Pace

8:45 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:12:17

32% of race

Time at Steady Pace

1:32:07

40% of race

Time at Slower Pace

1:04:52

28% of race

Average Pace: 8:45 /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 mi11:19:5525:238:1025:23
8:10
#17917
10K
6.21 mi11:45:5551:238:1626:00
8:22
#18434
15K
9.32 mi12:13:001:18:288:2527:05
8:43
#19146
20K
12.43 mi12:40:311:45:598:3227:31
8:51
#19452
Half
13.11 mi12:46:201:51:488:325:49
8:32
#19449
25K
15.53 mi13:07:332:13:018:3421:13
8:45
#19276
30K
18.64 mi13:35:542:41:228:3928:21
9:07
#19077
20M
20.00 mi13:48:102:53:388:4112:16
9:02
#18915
21M
21.00 mi13:57:493:03:178:449:39
9:39
#18774
35K
21.75 mi14:04:123:09:408:436:23
8:32
#18665
23M
23.00 mi14:15:253:20:538:4411:13
8:58
#18483
24M
24.00 mi14:24:053:29:338:448:40
8:40
#18332
40K
24.85 mi14:31:433:37:118:447:38
8:56
#18239
25.2M
25.20 mi14:35:063:40:348:453:23
9:49
#18216
Finish
26.22 mi14:43:483:49:168:458:42
8:32
#18149
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi179176293629320586(Top 72%)7761(Top 63%)7761(Top 596%)
10K6.21 mi3.10 mi18434-5176577-2846577-28419005(Top 67%)6886(Top 56%)6886(Top 528%)
15K9.32 mi3.11 mi19146-7126984-4076984-40720586(Top 72%)7761(Top 63%)7761(Top 596%)
20K12.43 mi3.11 mi19452-3067155-1717155-17120256(Top 71%)7619(Top 62%)7619(Top 585%)
Half13.11 mi0.68 mi19449+37160-57160-519396(Top 68%)7117(Top 58%)7117(Top 546%)
25K15.53 mi2.42 mi19276+1737074+867074+8618674(Top 66%)6797(Top 56%)6797(Top 522%)
30K18.64 mi3.11 mi19077+1997002+727002+7218295(Top 64%)6740(Top 55%)6740(Top 517%)
20M20.00 mi1.36 mi18915+1626926+766926+7616954(Top 60%)6113(Top 50%)6113(Top 469%)
21M21.00 mi1.00 mi18774+1416876+506876+5016810(Top 59%)6159(Top 50%)6159(Top 473%)
35K21.75 mi0.75 mi18665+1096830+466830+4615722(Top 55%)5640(Top 46%)5640(Top 433%)
23M23.00 mi1.25 mi18483+1826754+766754+7616062(Top 57%)5927(Top 48%)5927(Top 455%)
24M24.00 mi1.00 mi18332+1516700+546700+5415576(Top 55%)5689(Top 47%)5689(Top 437%)
40K24.85 mi0.85 mi18239+936677+236677+2315931(Top 56%)6011(Top 49%)6011(Top 461%)
25.2M25.20 mi0.35 mi18216+236676+16676+116222(Top 57%)6207(Top 51%)6207(Top 476%)
Finish26.22 mi1.02 mi18149+676653+236653+2316493(Top 58%)6303(Top 52%)6303(Top 484%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21story building
+97ft-345ft

Overall

20586

Females

7761

F50-54

7761

5K→10K

3.1 - 6.2 mi

Top 67%
×5story building
+79ft-138ft

Overall

19005

Females

6886

F50-54

6886

10K→15K

6.2 - 9.3 mi

Top 72%
×3story building
+67ft-78ft

Overall

20586

Females

7761

F50-54

7761

15K→20K

9.3 - 12.4 mi

Top 71%
×5story building
+106ft-86ft

Overall

20256

Females

7619

F50-54

7619

20K→Half

12.4 - 13.1 mi

Top 68%
×2story building
+19ft-37ft

Overall

19396

Females

7117

F50-54

7117

Half→25K

13.1 - 15.5 mi

Top 66%
×4story building
+66ft-88ft

Overall

18674

Females

6797

F50-54

6797

25K→30K

15.5 - 18.6 mi

Top 64%
×9story building
+181ft-148ft

Overall

18295

Females

6740

F50-54

6740

30K→20M

18.6 - 20.0 mi

Top 60%
×5story building
+64ft-50ft

Overall

16954

Females

6113

F50-54

6113

20M→21M

20.0 - 21.0 mi

Top 59%
×8story building
+106ft-24ft

Overall

16810

Females

6159

F50-54

6159

21M→35K

21.0 - 21.8 mi

Top 55%
×7story building
+17ft-86ft

Overall

15722

Females

5640

F50-54

5640

35K→23M

21.8 - 23.0 mi

Top 57%
×5story building
+23ft-63ft

Overall

16062

Females

5927

F50-54

5927

23M→24M

23.0 - 24.0 mi

Top 55%
×6story building
+12ft-82ft

Overall

15576

Females

5689

F50-54

5689

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

15931

Females

6011

F50-54

6011

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

16222

Females

6207

F50-54

6207

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2story building
+22ft-21ft

Overall

16493

Females

6303

F50-54

6303

Passing Analysis

Category:
Athletes Passed
1974
Passed By
2206
Net Change
-232
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17917
5K → 10K104621-517#17917#18434
10K → 15K51763-712#18434#19146
15K → 20K108414-306#19146#19452
20K → Half3330+3#19452#19449
Half → 25K25481+173#19449#19276
25K → 30K320121+199#19276#19077
30K → 20M18927+162#19077#18915
20M → 21M18241+141#18915#18774
21M → 35K1156+109#18774#18665
35K → 23M20018+182#18665#18483
23M → 24M1609+151#18483#18332
24M → 40K11926+93#18332#18239
40K → 25.2M3815+23#18239#18216
25.2M → Finish10134+67#18216#18149
TOTALS19742206-232
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing