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BOSTON MARATHON 2025

Lisa Hou

Bib: 13936•F

PA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 42%
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
7:20/mi
22:47
↑ 97↓ 3451.5%
10K· 6.21 mi
7:43/mi
46:46
↑ 79↓ 1380.4%
15K· 9.32 mi
7:51/mi
1:11:09
↑ 67↓ 78
20K· 12.43 mi
8:07/mi
1:36:23
↑ 106↓ 860.1%
Half· 13.11 mi
8:10/mi
1:41:57
↑ 19↓ 370.5%
25K· 15.53 mi
8:29/mi
2:02:30
↑ 66↓ 880.2%
30K· 18.64 mi
8:41/mi
2:29:28
↑ 181↓ 1480.2%
20M
9:15/mi
2:42:02
↑ 64↓ 500.2%
21M
9:40/mi
2:51:42
↑ 106↓ 241.6%
35K· 21.75 mi
9:01/mi
2:58:27
↑ 17↓ 861.7%
23M
9:08/mi
3:09:53
↑ 23↓ 630.6%
24M
8:50/mi
3:18:43
↓ 821.3%
40K· 24.85 mi
9:17/mi
3:26:39
↓ 200.3%
25.2M
9:43/mi
3:30:00
↑ 13↓ 160.2%
Finish· 26.22 mi
8:22/mi
3:38:32
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:57
Pace7:47 /mi
2nd Half
Distance13.11 mi
Time1:56:35
Pace8:54 /mi
📊Positive Split: 14.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:0422:477:2022:47
7:20
-
10K
6.21 mi11:16:0346:467:3223:59
7:43
+0:23
15K
9.32 mi11:40:261:11:097:3824:23
7:51
+0:08
20K
12.43 mi12:05:401:36:237:4525:14
8:07
+0:16
Half
13.11 mi12:11:141:41:577:475:34
8:10
+0:03
25K
15.53 mi12:31:472:02:307:5320:33
8:29
+0:19
30K
18.64 mi12:58:452:29:288:0126:58
8:41
+0:12
20M
20.00 mi13:11:192:42:028:0612:34
9:15
+0:34
21M
21.00 mi13:20:592:51:428:119:40
9:40
+0:25
35K
21.75 mi13:27:442:58:278:126:45
9:01
-0:39
23M
23.00 mi13:39:103:09:538:1511:26
9:08
+0:07
24M
24.00 mi13:48:003:18:438:178:50
8:50
-0:18
40K
24.85 mi13:55:563:26:398:197:56
9:17
+0:27
25.2M
25.20 mi13:59:173:30:008:203:21
9:43
+0:26
Finish
26.22 mi14:07:493:38:328:208:32
8:22
-1:21

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

7:20 /mi

Average Pace

8:20 /mi

Slowest Pace

9:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:41:57

47% of race

Time at Steady Pace

1:11:38

33% of race

Time at Slower Pace

44:57

21% of race

Average Pace: 8:20 /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 mi10:52:0422:477:2022:47
7:20
#10731
10K
6.21 mi11:16:0346:467:3223:59
7:43
#12367
15K
9.32 mi11:40:261:11:097:3824:23
7:51
#13168
20K
12.43 mi12:05:401:36:237:4525:14
8:07
#13870
Half
13.11 mi12:11:141:41:577:475:34
8:10
#14054
25K
15.53 mi12:31:472:02:307:5320:33
8:29
#14602
30K
18.64 mi12:58:452:29:288:0126:58
8:41
#14890
20M
20.00 mi13:11:192:42:028:0612:34
9:15
#15154
21M
21.00 mi13:20:592:51:428:119:40
9:40
#15224
35K
21.75 mi13:27:442:58:278:126:45
9:01
#15341
23M
23.00 mi13:39:103:09:538:1511:26
9:08
#15432
24M
24.00 mi13:48:003:18:438:178:50
8:50
#15471
40K
24.85 mi13:55:563:26:398:197:56
9:17
#15519
25.2M
25.20 mi13:59:173:30:008:203:21
9:43
#15523
Finish
26.22 mi14:07:493:38:328:208:32
8:22
#15501
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi107312157215714814(Top 52%)4486(Top 37%)4486(Top 82%)
10K6.21 mi3.10 mi12367-16362998-8412998-84114087(Top 50%)4008(Top 33%)4008(Top 73%)
15K9.32 mi3.11 mi13168-8013494-4963494-49614814(Top 52%)4486(Top 37%)4486(Top 82%)
20K12.43 mi3.11 mi13870-7023938-4443938-44415812(Top 56%)5106(Top 42%)5106(Top 93%)
Half13.11 mi0.68 mi14054-1844037-994037-9917039(Top 60%)5777(Top 47%)5777(Top 106%)
25K15.53 mi2.42 mi14602-5484393-3564393-35617032(Top 60%)5867(Top 48%)5867(Top 107%)
30K18.64 mi3.11 mi14890-2884611-2184611-21815879(Top 56%)5387(Top 44%)5387(Top 99%)
20M20.00 mi1.36 mi15154-2644790-1794790-17918032(Top 63%)6727(Top 55%)6727(Top 123%)
21M21.00 mi1.00 mi15224-704855-654855-6516878(Top 59%)6188(Top 51%)6188(Top 113%)
35K21.75 mi0.75 mi15341-1174936-814936-8118347(Top 65%)7090(Top 58%)7090(Top 130%)
23M23.00 mi1.25 mi15432-915036-1005036-10017010(Top 60%)6453(Top 53%)6453(Top 118%)
24M24.00 mi1.00 mi15471-395076-405076-4016507(Top 58%)6205(Top 51%)6205(Top 113%)
40K24.85 mi0.85 mi15519-485141-655141-6517752(Top 62%)6994(Top 57%)6994(Top 128%)
25.2M25.20 mi0.35 mi15523-45153-125153-1215718(Top 55%)5929(Top 48%)5929(Top 108%)
Finish26.22 mi1.02 mi15501+225150+35150+315408(Top 54%)5697(Top 47%)5697(Top 104%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21story building
+97ft-345ft

Overall

14814

Females

4486

F18-39

4486

5K→10K

3.1 - 6.2 mi

Top 50%
×5story building
+79ft-138ft

Overall

14087

Females

4008

F18-39

4008

10K→15K

6.2 - 9.3 mi

Top 52%
×3story building
+67ft-78ft

Overall

14814

Females

4486

F18-39

4486

15K→20K

9.3 - 12.4 mi

Top 56%
×5story building
+106ft-86ft

Overall

15812

Females

5106

F18-39

5106

20K→Half

12.4 - 13.1 mi

Top 60%
×2story building
+19ft-37ft

Overall

17039

Females

5777

F18-39

5777

Half→25K

13.1 - 15.5 mi

Top 60%
×4story building
+66ft-88ft

Overall

17032

Females

5867

F18-39

5867

25K→30K

15.5 - 18.6 mi

Top 56%
×9story building
+181ft-148ft

Overall

15879

Females

5387

F18-39

5387

30K→20M

18.6 - 20.0 mi

Top 63%
×5story building
+64ft-50ft

Overall

18032

Females

6727

F18-39

6727

20M→21M

20.0 - 21.0 mi

Top 59%
×8story building
+106ft-24ft

Overall

16878

Females

6188

F18-39

6188

21M→35K

21.0 - 21.8 mi

Top 65%
×7story building
+17ft-86ft

Overall

18347

Females

7090

F18-39

7090

35K→23M

21.8 - 23.0 mi

Top 60%
×5story building
+23ft-63ft

Overall

17010

Females

6453

F18-39

6453

23M→24M

23.0 - 24.0 mi

Top 58%
×6story building
+12ft-82ft

Overall

16507

Females

6205

F18-39

6205

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

17752

Females

6994

F18-39

6994

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

15718

Females

5929

F18-39

5929

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

15408

Females

5697

F18-39

5697

Passing Analysis

Category:
Athletes Passed
844
Passed By
5614
Net Change
-4770
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10731
5K → 10K181654-1636#10731#12367
10K → 15K41842-801#12367#13168
15K → 20K74776-702#13168#13870
20K → Half2186-184#13870#14054
Half → 25K60608-548#14054#14602
25K → 30K166454-288#14602#14890
30K → 20M64328-264#14890#15154
20M → 21M92162-70#15154#15224
21M → 35K40157-117#15224#15341
35K → 23M82173-91#15341#15432
23M → 24M5392-39#15432#15471
24M → 40K5098-48#15471#15519
40K → 25.2M3337-4#15519#15523
25.2M → Finish6947+22#15523#15501
TOTALS8445614-4770
📊

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