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BOSTON MARATHON 2025

Alice Marder

Bib: 26202•F

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F45-49)
#0 / 1813
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
9:10/mi
28:28
↑ 97↓ 3451.5%
10K· 6.21 mi
8:43/mi
55:34
↑ 79↓ 1380.4%
15K· 9.32 mi
9:08/mi
1:23:57
↑ 67↓ 78
20K· 12.43 mi
9:44/mi
1:54:11
↑ 106↓ 860.1%
Half· 13.11 mi
9:05/mi
2:00:23
↑ 19↓ 370.5%
25K· 15.53 mi
9:30/mi
2:23:26
↑ 66↓ 880.2%
30K· 18.64 mi
9:46/mi
2:53:47
↑ 181↓ 1480.2%
20M
9:45/mi
3:07:02
↑ 64↓ 500.2%
21M
10:19/mi
3:17:21
↑ 106↓ 241.6%
35K· 21.75 mi
8:52/mi
3:23:59
↑ 17↓ 861.7%
23M
9:42/mi
3:36:08
↑ 23↓ 630.6%
24M
9:04/mi
3:45:12
↓ 821.3%
40K· 24.85 mi
9:28/mi
3:53:18
↓ 200.3%
25.2M
10:09/mi
3:56:48
↑ 13↓ 160.2%
Finish· 26.22 mi
8:31/mi
4:05:29
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:00:23
Pace9:11 /mi
2nd Half
Distance13.11 mi
Time2:05:06
Pace9:33 /mi
📊Positive Split: 3.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:0128:289:1028:28
9:10
-
10K
6.21 mi12:11:0755:348:5727:06
8:43
-0:27
15K
9.32 mi12:39:301:23:579:0028:23
9:08
+0:25
20K
12.43 mi13:09:441:54:119:1130:14
9:44
+0:36
Half
13.11 mi13:15:562:00:239:116:12
9:05
-0:39
25K
15.53 mi13:38:592:23:269:1423:03
9:30
+0:25
30K
18.64 mi14:09:202:53:479:1930:21
9:46
+0:16
20M
20.00 mi14:22:353:07:029:2113:15
9:45
-0:01
21M
21.00 mi14:32:543:17:219:2410:19
10:19
+0:34
35K
21.75 mi14:39:323:23:599:236:38
8:52
-1:27
23M
23.00 mi14:51:413:36:089:2412:09
9:42
+0:50
24M
24.00 mi15:00:453:45:129:239:04
9:04
-0:38
40K
24.85 mi15:08:513:53:189:238:06
9:28
+0:24
25.2M
25.20 mi15:12:213:56:489:243:30
10:09
+0:41
Finish
26.22 mi15:21:024:05:299:228:41
8:31
-1:38

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

8:31 /mi

Average Pace

9:22 /mi

Slowest Pace

10:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:54:32

47% of race

Time at Steady Pace

43:18

18% of race

Time at Slower Pace

1:27:39

36% of race

Average Pace: 9:22 /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 mi11:44:0128:289:1028:28
9:10
#23082
10K
6.21 mi12:11:0755:348:5727:06
8:43
#22169
15K
9.32 mi12:39:301:23:579:0028:23
9:08
#22308
20K
12.43 mi13:09:441:54:119:1130:14
9:44
#22725
Half
13.11 mi13:15:562:00:239:116:12
9:05
#22698
25K
15.53 mi13:38:592:23:269:1423:03
9:30
#22555
30K
18.64 mi14:09:202:53:479:1930:21
9:46
#22244
20M
20.00 mi14:22:353:07:029:2113:15
9:45
#22086
21M
21.00 mi14:32:543:17:219:2410:19
10:19
#21909
35K
21.75 mi14:39:323:23:599:236:38
8:52
#21765
23M
23.00 mi14:51:413:36:089:2412:09
9:42
#21614
24M
24.00 mi15:00:453:45:129:239:04
9:04
#21443
40K
24.85 mi15:08:513:53:189:238:06
9:28
#21328
25.2M
25.20 mi15:12:213:56:489:243:30
10:09
#21273
Finish
26.22 mi15:21:024:05:299:228:41
8:31
#21120
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi230829215921522614(Top 80%)8900(Top 73%)8900(Top 491%)
10K6.21 mi3.10 mi22169+9138708+5078708+50721013(Top 74%)8022(Top 66%)8022(Top 442%)
15K9.32 mi3.11 mi22308-1398758-508758-5022614(Top 80%)8900(Top 73%)8900(Top 491%)
20K12.43 mi3.11 mi22725-4178965-2078965-20723578(Top 83%)9464(Top 77%)9464(Top 522%)
Half13.11 mi0.68 mi22698+278954+118954+1122192(Top 78%)8709(Top 71%)8709(Top 480%)
25K15.53 mi2.42 mi22555+1438897+578897+5721891(Top 77%)8593(Top 70%)8593(Top 474%)
30K18.64 mi3.11 mi22244+3118762+1358762+13520894(Top 74%)8172(Top 67%)8172(Top 451%)
20M20.00 mi1.36 mi22086+1588686+768686+7620137(Top 71%)7877(Top 64%)7877(Top 434%)
21M21.00 mi1.00 mi21909+1778613+738613+7319450(Top 68%)7591(Top 62%)7591(Top 419%)
35K21.75 mi0.75 mi21765+1448551+628551+6217651(Top 62%)6726(Top 55%)6726(Top 371%)
23M23.00 mi1.25 mi21614+1518498+538498+5319477(Top 69%)7772(Top 64%)7772(Top 429%)
24M24.00 mi1.00 mi21443+1718418+808418+8017746(Top 62%)6912(Top 57%)6912(Top 381%)
40K24.85 mi0.85 mi21328+1158377+418377+4118641(Top 66%)7457(Top 61%)7457(Top 411%)
25.2M25.20 mi0.35 mi21273+558358+198358+1917773(Top 63%)7025(Top 57%)7025(Top 387%)
Finish26.22 mi1.02 mi21120+1538288+708288+7016399(Top 58%)6259(Top 51%)6259(Top 345%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21story building
+97ft-345ft

Overall

22614

Females

8900

F45-49

8900

5K→10K

3.1 - 6.2 mi

Top 74%
×5story building
+79ft-138ft

Overall

21013

Females

8022

F45-49

8022

10K→15K

6.2 - 9.3 mi

Top 80%
×3story building
+67ft-78ft

Overall

22614

Females

8900

F45-49

8900

15K→20K

9.3 - 12.4 mi

Top 83%
×5story building
+106ft-86ft

Overall

23578

Females

9464

F45-49

9464

20K→Half

12.4 - 13.1 mi

Top 78%
×2story building
+19ft-37ft

Overall

22192

Females

8709

F45-49

8709

Half→25K

13.1 - 15.5 mi

Top 77%
×4story building
+66ft-88ft

Overall

21891

Females

8593

F45-49

8593

25K→30K

15.5 - 18.6 mi

Top 74%
×9story building
+181ft-148ft

Overall

20894

Females

8172

F45-49

8172

30K→20M

18.6 - 20.0 mi

Top 71%
×5story building
+64ft-50ft

Overall

20137

Females

7877

F45-49

7877

20M→21M

20.0 - 21.0 mi

Top 68%
×8story building
+106ft-24ft

Overall

19450

Females

7591

F45-49

7591

21M→35K

21.0 - 21.8 mi

Top 62%
×7story building
+17ft-86ft

Overall

17651

Females

6726

F45-49

6726

35K→23M

21.8 - 23.0 mi

Top 69%
×5story building
+23ft-63ft

Overall

19477

Females

7772

F45-49

7772

23M→24M

23.0 - 24.0 mi

Top 62%
×6story building
+12ft-82ft

Overall

17746

Females

6912

F45-49

6912

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

18641

Females

7457

F45-49

7457

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1story
+13ft-16ft

Overall

17773

Females

7025

F45-49

7025

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2story building
+22ft-21ft

Overall

16399

Females

6259

F45-49

6259

Passing Analysis

Category:
Athletes Passed
2939
Passed By
977
Net Change
+1962
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23082
5K → 10K93724+913#23082#22169
10K → 15K142281-139#22169#22308
15K → 20K70487-417#22308#22725
20K → Half4720+27#22725#22698
Half → 25K20865+143#22698#22555
25K → 30K35746+311#22555#22244
30K → 20M17416+158#22244#22086
20M → 21M1847+177#22086#21909
21M → 35K1462+144#21909#21765
35K → 23M16413+151#21765#21614
23M → 24M1743+171#21614#21443
24M → 40K1216+115#21443#21328
40K → 25.2M616+55#21328#21273
25.2M → Finish1541+153#21273#21120
TOTALS2939977+1962
📊

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