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BOSTON MARATHON 2025

Lily Yu

Bib: 25034•F

NJ

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F60-64)
#0 / 624
Top 44%
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
9:26/mi
29:19
↑ 97↓ 3451.5%
10K· 6.21 mi
9:28/mi
58:43
↑ 79↓ 1380.4%
15K· 9.32 mi
9:14/mi
1:27:24
↑ 67↓ 78
20K· 12.43 mi
9:14/mi
1:56:06
↑ 106↓ 860.1%
Half· 13.11 mi
9:04/mi
2:02:17
↑ 19↓ 370.5%
25K· 15.53 mi
9:30/mi
2:25:19
↑ 66↓ 880.2%
30K· 18.64 mi
10:00/mi
2:56:24
↑ 181↓ 1480.2%
20M
9:50/mi
3:09:46
↑ 64↓ 500.2%
21M
10:33/mi
3:20:19
↑ 106↓ 241.6%
35K· 21.75 mi
10:03/mi
3:27:50
↑ 17↓ 861.7%
23M
10:05/mi
3:40:28
↑ 23↓ 630.6%
24M
10:08/mi
3:50:36
↓ 821.3%
40K· 24.85 mi
9:49/mi
3:59:00
↓ 200.3%
25.2M
10:55/mi
4:02:46
↑ 13↓ 160.2%
Finish· 26.22 mi
9:29/mi
4:12:26
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:02:17
Pace9:20 /mi
2nd Half
Distance13.11 mi
Time2:10:09
Pace9:56 /mi
📊Positive Split: 6.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:30:2129:199:2629:19
9:26
-
10K
6.21 mi11:59:4558:439:2729:24
9:28
+0:02
15K
9.32 mi12:28:261:27:249:2328:41
9:14
-0:14
20K
12.43 mi12:57:081:56:069:2128:42
9:14
0:00
Half
13.11 mi13:03:192:02:179:206:11
9:04
-0:10
25K
15.53 mi13:26:212:25:199:2123:02
9:30
+0:26
30K
18.64 mi13:57:262:56:249:2831:05
10:00
+0:30
20M
20.00 mi14:10:483:09:469:2913:22
9:50
-0:10
21M
21.00 mi14:21:213:20:199:3210:33
10:33
+0:43
35K
21.75 mi14:28:523:27:509:337:31
10:03
-0:30
23M
23.00 mi14:41:303:40:289:3512:38
10:05
+0:02
24M
24.00 mi14:51:383:50:369:3710:08
10:08
+0:03
40K
24.85 mi15:00:023:59:009:378:24
9:49
-0:19
25.2M
25.20 mi15:03:484:02:469:383:46
10:55
+1:06
Finish
26.22 mi15:13:284:12:269:389:40
9:29
-1:26

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

9:04 /mi

Average Pace

9:38 /mi

Slowest Pace

10:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:34:59

61% of race

Time at Steady Pace

1:00:22

24% of race

Time at Slower Pace

37:05

15% of race

Average Pace: 9:38 /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 mi11:30:2129:199:2629:19
9:26
#24029
10K
6.21 mi11:59:4558:439:2729:24
9:28
#24041
15K
9.32 mi12:28:261:27:249:2328:41
9:14
#23692
20K
12.43 mi12:57:081:56:069:2128:42
9:14
#23263
Half
13.11 mi13:03:192:02:179:206:11
9:04
#23206
25K
15.53 mi13:26:212:25:199:2123:02
9:30
#22974
30K
18.64 mi13:57:262:56:249:2831:05
10:00
#22694
20M
20.00 mi14:10:483:09:469:2913:22
9:50
#22521
21M
21.00 mi14:21:213:20:199:3210:33
10:33
#22373
35K
21.75 mi14:28:523:27:509:337:31
10:03
#22355
23M
23.00 mi14:41:303:40:289:3512:38
10:05
#22235
24M
24.00 mi14:51:383:50:369:3710:08
10:08
#22208
40K
24.85 mi15:00:023:59:009:378:24
9:49
#22136
25.2M
25.20 mi15:03:484:02:469:383:46
10:55
#22097
Finish
26.22 mi15:13:284:12:269:389:40
9:29
#22050
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi240299709970922977(Top 81%)9091(Top 74%)9091(Top 1457%)
10K6.21 mi3.10 mi24041-129707+29707+224016(Top 85%)9691(Top 79%)9691(Top 1553%)
15K9.32 mi3.11 mi23692+3499513+1949513+19422977(Top 81%)9091(Top 74%)9091(Top 1457%)
20K12.43 mi3.11 mi23263+4299265+2489265+24822042(Top 78%)8608(Top 70%)8608(Top 1379%)
Half13.11 mi0.68 mi23206+579232+339232+3322119(Top 78%)8676(Top 71%)8676(Top 1390%)
25K15.53 mi2.42 mi22974+2329129+1039129+10321871(Top 77%)8583(Top 70%)8583(Top 1375%)
30K18.64 mi3.11 mi22694+2809014+1159014+11521619(Top 76%)8568(Top 70%)8568(Top 1373%)
20M20.00 mi1.36 mi22521+1738944+708944+7020425(Top 72%)8037(Top 66%)8037(Top 1288%)
21M21.00 mi1.00 mi22373+1488875+698875+6920192(Top 71%)8019(Top 66%)8019(Top 1285%)
35K21.75 mi0.75 mi22355+188877-28877-222049(Top 78%)9057(Top 74%)9057(Top 1451%)
23M23.00 mi1.25 mi22235+1208849+288849+2820792(Top 73%)8449(Top 69%)8449(Top 1354%)
24M24.00 mi1.00 mi22208+278865-168865-1621757(Top 77%)9006(Top 74%)9006(Top 1443%)
40K24.85 mi0.85 mi22136+728835+308835+3019914(Top 70%)8110(Top 66%)8110(Top 1300%)
25.2M25.20 mi0.35 mi22097+398820+158820+1520440(Top 72%)8388(Top 69%)8388(Top 1344%)
Finish26.22 mi1.02 mi22050+478806+148806+1421146(Top 74%)8732(Top 71%)8732(Top 1399%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21story building
+97ft-345ft

Overall

22977

Females

9091

F60-64

9091

5K→10K

3.1 - 6.2 mi

Top 85%
×5story building
+79ft-138ft

Overall

24016

Females

9691

F60-64

9691

10K→15K

6.2 - 9.3 mi

Top 81%
×3story building
+67ft-78ft

Overall

22977

Females

9091

F60-64

9091

15K→20K

9.3 - 12.4 mi

Top 78%
×5story building
+106ft-86ft

Overall

22042

Females

8608

F60-64

8608

20K→Half

12.4 - 13.1 mi

Top 78%
×2story building
+19ft-37ft

Overall

22119

Females

8676

F60-64

8676

Half→25K

13.1 - 15.5 mi

Top 77%
×4story building
+66ft-88ft

Overall

21871

Females

8583

F60-64

8583

25K→30K

15.5 - 18.6 mi

Top 76%
×9story building
+181ft-148ft

Overall

21619

Females

8568

F60-64

8568

30K→20M

18.6 - 20.0 mi

Top 72%
×5story building
+64ft-50ft

Overall

20425

Females

8037

F60-64

8037

20M→21M

20.0 - 21.0 mi

Top 71%
×8story building
+106ft-24ft

Overall

20192

Females

8019

F60-64

8019

21M→35K

21.0 - 21.8 mi

Top 78%
×7story building
+17ft-86ft

Overall

22049

Females

9057

F60-64

9057

35K→23M

21.8 - 23.0 mi

Top 73%
×5story building
+23ft-63ft

Overall

20792

Females

8449

F60-64

8449

23M→24M

23.0 - 24.0 mi

Top 77%
×6story building
+12ft-82ft

Overall

21757

Females

9006

F60-64

9006

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

19914

Females

8110

F60-64

8110

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

20440

Females

8388

F60-64

8388

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2story building
+22ft-21ft

Overall

21146

Females

8732

F60-64

8732

Passing Analysis

Category:
Athletes Passed
2500
Passed By
521
Net Change
+1979
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24029
5K → 10K228240-12#24029#24041
10K → 15K37728+349#24041#23692
15K → 20K4378+429#23692#23263
20K → Half658+57#23263#23206
Half → 25K26735+232#23206#22974
25K → 30K31535+280#22974#22694
30K → 20M18916+173#22694#22521
20M → 21M16012+148#22521#22373
21M → 35K4729+18#22373#22355
35K → 23M14323+120#22355#22235
23M → 24M6336+27#22235#22208
24M → 40K8210+72#22208#22136
40K → 25.2M489+39#22136#22097
25.2M → Finish7932+47#22097#22050
TOTALS2500521+1979
📊

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