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BOSTON MARATHON 2025

Pui Yin Leung

Bib: 19180•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 45%
Division (F18-39)
#0 / 5469
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
8:02/mi
24:59
↑ 97↓ 3451.5%
10K· 6.21 mi
8:06/mi
50:08
↑ 79↓ 1380.4%
15K· 9.32 mi
8:06/mi
1:15:18
↑ 67↓ 78
20K· 12.43 mi
8:12/mi
1:40:46
↑ 106↓ 860.1%
Half· 13.11 mi
8:11/mi
1:46:21
↑ 19↓ 370.5%
25K· 15.53 mi
8:24/mi
2:06:44
↑ 66↓ 880.2%
30K· 18.64 mi
8:52/mi
2:34:18
↑ 181↓ 1480.2%
20M
8:50/mi
2:46:18
↑ 64↓ 500.2%
21M
9:36/mi
2:55:54
↑ 106↓ 241.6%
35K· 21.75 mi
8:27/mi
3:02:13
↑ 17↓ 861.7%
23M
8:42/mi
3:13:06
↑ 23↓ 630.6%
24M
8:43/mi
3:21:49
↓ 821.3%
40K· 24.85 mi
8:44/mi
3:29:17
↓ 200.3%
25.2M
9:25/mi
3:32:32
↑ 13↓ 160.2%
Finish· 26.22 mi
8:29/mi
3:41:11
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:21
Pace8:07 /mi
2nd Half
Distance13.11 mi
Time1:54:50
Pace8:46 /mi
📊Positive Split: 8.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:2724:598:0224:59
8:02
-
10K
6.21 mi11:42:3650:088:0425:09
8:06
+0:04
15K
9.32 mi12:07:461:15:188:0525:10
8:06
0:00
20K
12.43 mi12:33:141:40:468:0725:28
8:12
+0:06
Half
13.11 mi12:38:491:46:218:075:35
8:11
-0:01
25K
15.53 mi12:59:122:06:448:0920:23
8:24
+0:13
30K
18.64 mi13:26:462:34:188:1727:34
8:52
+0:28
20M
20.00 mi13:38:462:46:188:1912:00
8:50
-0:02
21M
21.00 mi13:48:222:55:548:239:36
9:36
+0:46
35K
21.75 mi13:54:413:02:138:236:19
8:27
-1:09
23M
23.00 mi14:05:343:13:068:2410:53
8:42
+0:15
24M
24.00 mi14:14:173:21:498:258:43
8:43
+0:01
40K
24.85 mi14:21:453:29:178:257:28
8:44
+0:01
25.2M
25.20 mi14:25:003:32:328:263:15
9:25
+0:41
Finish
26.22 mi14:33:393:41:118:278:39
8:29
-0:56

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

8:02 /mi

Average Pace

8:27 /mi

Slowest Pace

9:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:00:46

82% of race

Time at Steady Pace

30:49

14% of race

Time at Slower Pace

9:36

4% of race

Average Pace: 8:26 /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 mi11:17:2724:598:0224:59
8:02
#16931
10K
6.21 mi11:42:3650:088:0425:09
8:06
#17030
15K
9.32 mi12:07:461:15:188:0525:10
8:06
#16922
20K
12.43 mi12:33:141:40:468:0725:28
8:12
#16742
Half
13.11 mi12:38:491:46:218:075:35
8:11
#16752
25K
15.53 mi12:59:122:06:448:0920:23
8:24
#16700
30K
18.64 mi13:26:462:34:188:1727:34
8:52
#16706
20M
20.00 mi13:38:462:46:188:1912:00
8:50
#16606
21M
21.00 mi13:48:222:55:548:239:36
9:36
#16557
35K
21.75 mi13:54:413:02:138:236:19
8:27
#16481
23M
23.00 mi14:05:343:13:068:2410:53
8:42
#16306
24M
24.00 mi14:14:173:21:498:258:43
8:43
#16256
40K
24.85 mi14:21:453:29:178:257:28
8:44
#16211
25.2M
25.20 mi14:25:003:32:328:263:15
9:25
#16168
Finish
26.22 mi14:33:393:41:118:278:39
8:29
#16165
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi169315703570316749(Top 59%)5584(Top 46%)5584(Top 102%)
10K6.21 mi3.10 mi17030-995743-405743-4017167(Top 60%)5797(Top 47%)5797(Top 106%)
15K9.32 mi3.11 mi16922+1085675+685675+6816749(Top 59%)5584(Top 46%)5584(Top 102%)
20K12.43 mi3.11 mi16742+1805584+915584+9116298(Top 57%)5385(Top 44%)5385(Top 98%)
Half13.11 mi0.68 mi16752-105589-55589-517217(Top 61%)5882(Top 48%)5882(Top 108%)
25K15.53 mi2.42 mi16700+525583+65583+616623(Top 59%)5643(Top 46%)5643(Top 103%)
30K18.64 mi3.11 mi16706-65640-575640-5717010(Top 60%)6035(Top 49%)6035(Top 110%)
20M20.00 mi1.36 mi16606+1005614+265614+2615861(Top 56%)5508(Top 45%)5508(Top 101%)
21M21.00 mi1.00 mi16557+495613+15613+116565(Top 58%)6011(Top 49%)6011(Top 110%)
35K21.75 mi0.75 mi16481+765592+215592+2115157(Top 53%)5319(Top 43%)5319(Top 97%)
23M23.00 mi1.25 mi16306+1755522+705522+7014528(Top 51%)5086(Top 42%)5086(Top 93%)
24M24.00 mi1.00 mi16256+505525-35525-315853(Top 56%)5843(Top 48%)5843(Top 107%)
40K24.85 mi0.85 mi16211+455522+35522+314838(Top 52%)5435(Top 44%)5435(Top 99%)
25.2M25.20 mi0.35 mi16168+435507+155507+1514236(Top 50%)5156(Top 42%)5156(Top 94%)
Finish26.22 mi1.02 mi16165+35526-195526-1916164(Top 57%)6108(Top 50%)6108(Top 112%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21story building
+97ft-345ft

Overall

16749

Females

5584

F18-39

5584

5K→10K

3.1 - 6.2 mi

Top 60%
×5story building
+79ft-138ft

Overall

17167

Females

5797

F18-39

5797

10K→15K

6.2 - 9.3 mi

Top 59%
×3story building
+67ft-78ft

Overall

16749

Females

5584

F18-39

5584

15K→20K

9.3 - 12.4 mi

Top 57%
×5story building
+106ft-86ft

Overall

16298

Females

5385

F18-39

5385

20K→Half

12.4 - 13.1 mi

Top 61%
×2story building
+19ft-37ft

Overall

17217

Females

5882

F18-39

5882

Half→25K

13.1 - 15.5 mi

Top 59%
×4story building
+66ft-88ft

Overall

16623

Females

5643

F18-39

5643

25K→30K

15.5 - 18.6 mi

Top 60%
×9story building
+181ft-148ft

Overall

17010

Females

6035

F18-39

6035

30K→20M

18.6 - 20.0 mi

Top 56%
×5story building
+64ft-50ft

Overall

15861

Females

5508

F18-39

5508

20M→21M

20.0 - 21.0 mi

Top 58%
×8story building
+106ft-24ft

Overall

16565

Females

6011

F18-39

6011

21M→35K

21.0 - 21.8 mi

Top 53%
×7story building
+17ft-86ft

Overall

15157

Females

5319

F18-39

5319

35K→23M

21.8 - 23.0 mi

Top 51%
×5story building
+23ft-63ft

Overall

14528

Females

5086

F18-39

5086

23M→24M

23.0 - 24.0 mi

Top 56%
×6story building
+12ft-82ft

Overall

15853

Females

5843

F18-39

5843

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

14838

Females

5435

F18-39

5435

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

14236

Females

5156

F18-39

5156

25.2M→Finish

25.2 - 26.2 mi

Top 57%
×2story building
+22ft-21ft

Overall

16164

Females

6108

F18-39

6108

Passing Analysis

Category:
Athletes Passed
2140
Passed By
1374
Net Change
+766
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16931
5K → 10K254353-99#16931#17030
10K → 15K255147+108#17030#16922
15K → 20K281101+180#16922#16742
20K → Half3545-10#16742#16752
Half → 25K180128+52#16752#16700
25K → 30K221227-6#16700#16706
30K → 20M15151+100#16706#16606
20M → 21M12778+49#16606#16557
21M → 35K10226+76#16557#16481
35K → 23M21035+175#16481#16306
23M → 24M10454+50#16306#16256
24M → 40K8742+45#16256#16211
40K → 25.2M5613+43#16211#16168
25.2M → Finish7774+3#16168#16165
TOTALS21401374+766
📊

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