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BOSTON MARATHON 2025

Laura Archer

Bib: 15308•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 46%
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
7:47/mi
24:12
↑ 97↓ 3451.5%
10K· 6.21 mi
7:58/mi
48:57
↑ 79↓ 1380.4%
15K· 9.32 mi
8:11/mi
1:14:21
↑ 67↓ 78
20K· 12.43 mi
8:23/mi
1:40:25
↑ 106↓ 860.1%
Half· 13.11 mi
8:30/mi
1:46:13
↑ 19↓ 370.5%
25K· 15.53 mi
8:32/mi
2:06:55
↑ 66↓ 880.2%
30K· 18.64 mi
8:57/mi
2:34:44
↑ 181↓ 1480.2%
20M
8:56/mi
2:46:52
↑ 64↓ 500.2%
21M
9:26/mi
2:56:18
↑ 106↓ 241.6%
35K· 21.75 mi
8:39/mi
3:02:46
↑ 17↓ 861.7%
23M
9:00/mi
3:14:02
↑ 23↓ 630.6%
24M
8:48/mi
3:22:50
↓ 821.3%
40K· 24.85 mi
8:53/mi
3:30:26
↓ 200.3%
25.2M
9:02/mi
3:33:33
↑ 13↓ 160.2%
Finish· 26.22 mi
8:24/mi
3:42:07
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:13
Pace8:06 /mi
2nd Half
Distance13.11 mi
Time1:55:54
Pace8:50 /mi
📊Positive Split: 9.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:0524:127:4724:12
7:47
-
10K
6.21 mi11:20:5048:577:5324:45
7:58
+0:11
15K
9.32 mi11:46:141:14:217:5925:24
8:11
+0:13
20K
12.43 mi12:12:181:40:258:0526:04
8:23
+0:12
Half
13.11 mi12:18:061:46:138:065:48
8:30
+0:07
25K
15.53 mi12:38:482:06:558:1020:42
8:32
+0:02
30K
18.64 mi13:06:372:34:448:1827:49
8:57
+0:25
20M
20.00 mi13:18:452:46:528:2112:08
8:56
-0:01
21M
21.00 mi13:28:112:56:188:249:26
9:26
+0:30
35K
21.75 mi13:34:393:02:468:246:28
8:39
-0:47
23M
23.00 mi13:45:553:14:028:2611:16
9:00
+0:21
24M
24.00 mi13:54:433:22:508:278:48
8:48
-0:12
40K
24.85 mi14:02:193:30:268:287:36
8:53
+0:05
25.2M
25.20 mi14:05:263:33:338:283:07
9:02
+0:09
Finish
26.22 mi14:14:003:42:078:298:34
8:24
-0:38

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

7:47 /mi

Average Pace

8:29 /mi

Slowest Pace

9:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:48:59

49% of race

Time at Steady Pace

41:46

19% of race

Time at Slower Pace

1:11:22

32% of race

Average Pace: 8:28 /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 mi10:56:0524:127:4724:12
7:47
#14737
10K
6.21 mi11:20:5048:577:5324:45
7:58
#15473
15K
9.32 mi11:46:141:14:217:5925:24
8:11
#16147
20K
12.43 mi12:12:181:40:258:0526:04
8:23
#16542
Half
13.11 mi12:18:061:46:138:065:48
8:30
#16691
25K
15.53 mi12:38:482:06:558:1020:42
8:32
#16778
30K
18.64 mi13:06:372:34:448:1827:49
8:57
#16846
20M
20.00 mi13:18:452:46:528:2112:08
8:56
#16785
21M
21.00 mi13:28:112:56:188:249:26
9:26
#16677
35K
21.75 mi13:34:393:02:468:246:28
8:39
#16641
23M
23.00 mi13:45:553:14:028:2611:16
9:00
#16581
24M
24.00 mi13:54:433:22:508:278:48
8:48
#16565
40K
24.85 mi14:02:193:30:268:287:36
8:53
#16520
25.2M
25.20 mi14:05:263:33:338:283:07
9:02
#16442
Finish
26.22 mi14:14:003:42:078:298:34
8:24
#16389
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi147374374437417248(Top 61%)5873(Top 48%)5873(Top 107%)
10K6.21 mi3.10 mi15473-7364819-4454819-44516218(Top 57%)5258(Top 43%)5258(Top 96%)
15K9.32 mi3.11 mi16147-6745226-4075226-40717248(Top 61%)5873(Top 48%)5873(Top 107%)
20K12.43 mi3.11 mi16542-3955460-2345460-23417496(Top 62%)6048(Top 49%)6048(Top 111%)
Half13.11 mi0.68 mi16691-1495553-935553-9319210(Top 68%)7001(Top 57%)7001(Top 128%)
25K15.53 mi2.42 mi16778-875634-815634-8117413(Top 61%)6088(Top 50%)6088(Top 111%)
30K18.64 mi3.11 mi16846-685723-895723-8917434(Top 61%)6265(Top 51%)6265(Top 115%)
20M20.00 mi1.36 mi16785+615708+155708+1516423(Top 58%)5836(Top 48%)5836(Top 107%)
21M21.00 mi1.00 mi16677+1085686+225686+2215800(Top 56%)5603(Top 46%)5603(Top 102%)
35K21.75 mi0.75 mi16641+365687-15687-116359(Top 58%)5979(Top 49%)5979(Top 109%)
23M23.00 mi1.25 mi16581+605684+35684+316255(Top 57%)6029(Top 49%)6029(Top 110%)
24M24.00 mi1.00 mi16565+165696-125696-1216337(Top 58%)6117(Top 50%)6117(Top 112%)
40K24.85 mi0.85 mi16520+455701-55701-515720(Top 55%)5904(Top 48%)5904(Top 108%)
25.2M25.20 mi0.35 mi16442+785662+395662+3912118(Top 43%)4059(Top 33%)4059(Top 74%)
Finish26.22 mi1.02 mi16389+535659+35659+315652(Top 55%)5834(Top 48%)5834(Top 107%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21story building
+97ft-345ft

Overall

17248

Females

5873

F18-39

5873

5K→10K

3.1 - 6.2 mi

Top 57%
×5story building
+79ft-138ft

Overall

16218

Females

5258

F18-39

5258

10K→15K

6.2 - 9.3 mi

Top 61%
×3story building
+67ft-78ft

Overall

17248

Females

5873

F18-39

5873

15K→20K

9.3 - 12.4 mi

Top 62%
×5story building
+106ft-86ft

Overall

17496

Females

6048

F18-39

6048

20K→Half

12.4 - 13.1 mi

Top 68%
×2story building
+19ft-37ft

Overall

19210

Females

7001

F18-39

7001

Half→25K

13.1 - 15.5 mi

Top 61%
×4story building
+66ft-88ft

Overall

17413

Females

6088

F18-39

6088

25K→30K

15.5 - 18.6 mi

Top 61%
×9story building
+181ft-148ft

Overall

17434

Females

6265

F18-39

6265

30K→20M

18.6 - 20.0 mi

Top 58%
×5story building
+64ft-50ft

Overall

16423

Females

5836

F18-39

5836

20M→21M

20.0 - 21.0 mi

Top 56%
×8story building
+106ft-24ft

Overall

15800

Females

5603

F18-39

5603

21M→35K

21.0 - 21.8 mi

Top 58%
×7story building
+17ft-86ft

Overall

16359

Females

5979

F18-39

5979

35K→23M

21.8 - 23.0 mi

Top 57%
×5story building
+23ft-63ft

Overall

16255

Females

6029

F18-39

6029

23M→24M

23.0 - 24.0 mi

Top 58%
×6story building
+12ft-82ft

Overall

16337

Females

6117

F18-39

6117

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

15720

Females

5904

F18-39

5904

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

12118

Females

4059

F18-39

4059

25.2M→Finish

25.2 - 26.2 mi

Top 55%
×2story building
+22ft-21ft

Overall

15652

Females

5834

F18-39

5834

Passing Analysis

Category:
Athletes Passed
1460
Passed By
3112
Net Change
-1652
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14737
5K → 10K94830-736#14737#15473
10K → 15K56730-674#15473#16147
15K → 20K107502-395#16147#16542
20K → Half9158-149#16542#16691
Half → 25K130217-87#16691#16778
25K → 30K195263-68#16778#16846
30K → 20M13069+61#16846#16785
20M → 21M16355+108#16785#16677
21M → 35K7640+36#16677#16641
35K → 23M13878+60#16641#16581
23M → 24M8165+16#16581#16565
24M → 40K9853+45#16565#16520
40K → 25.2M824+78#16520#16442
25.2M → Finish10148+53#16442#16389
TOTALS14603112-1652
📊

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