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BOSTON MARATHON 2025

Amy Carlson

MA

Bib: 29723 F

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

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
12:16/mi
38:08
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
12:32/mi
1:17:05
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
12:41/mi
1:56:28
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
13:37/mi
2:38:46
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
13:29/mi
2:47:58
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
15:06/mi
3:24:34
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
15:02/mi
4:11:15
↑ 181↓ 1480.2%
138 ft elev
20M
14:37/mi
4:31:07
↑ 64↓ 500.2%
148 ft elev
21M
16:07/mi
4:47:14
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
13:50/mi
4:57:35
↑ 17↓ 861.7%
156 ft elev
23M
14:02/mi
5:15:09
↑ 23↓ 630.6%
116 ft elev
24M
13:52/mi
5:29:01
↓ 821.3%
34 ft elev
40K· 24.85 mi
13:38/mi
5:40:40
↓ 200.3%
20 ft elev
25.2M
16:06/mi
5:46:13
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
12:58/mi
5:59:26
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
2:47:5812:49 /mi⚡ faster
2nd Half
3:11:2814:36 /mi+14.0%
Positive split — 14.0% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
38:0812:163.11 mi38:08
12:16
-
10K
1:17:0512:243.10 mi38:57
12:32
+0:16
15K
1:56:2812:303.11 mi39:23
12:41
+0:09
20K
2:38:4612:473.11 mi42:18
13:37
+0:56
Half(13.11 mi)
2:47:5812:490.68 mi9:12
13:29
-0:08
25K
3:24:3413:102.42 mi36:36
15:06
+1:37
30K
4:11:1513:293.11 mi46:41
15:02
-0:04
20M
4:31:0713:331.36 mi19:52
14:37
-0:25
21M
4:47:1413:411.00 mi16:07
16:07
+1:30
35K
4:57:3513:410.75 mi10:21
13:50
-2:17
23M
5:15:0913:421.25 mi17:34
14:02
+0:12
24M
5:29:0113:431.00 mi13:52
13:52
-0:10
40K
5:40:4013:420.85 mi11:39
13:38
-0:14
25.2M
5:46:1313:440.35 mi5:33
16:06
+2:28
Finish(26.22 mi)
5:59:2613:431.02 mi13:13
12:58
-3:08
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

12:16 /mi

Average Pace

13:43 /mi

Slowest Pace

16:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:09:41

36% of race

Time at Steady Pace

1:44:56

29% of race

Time at Slower Pace

2:04:49

35% of race

Average Pace: 13:43 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi282941215712157280301199411994
10K3.10 mi28265+2912142+1512142+15282021210212102
15K3.11 mi28230+3512118+2412118+24280301199411994
20K3.11 mi28237-712133-1512133-15281111206512065
Half(13.11 mi)0.68 mi28236+112132+112132+1281661210812108
25K2.42 mi28272-3612153-2112153-21282471215212152
30K3.11 mi28271+112159-612159-6280381207112071
20M1.36 mi28254+1712151+812151+8276951191611916
21M1.00 mi28253+112152-112152-1278601198811988
35K0.75 mi28248+51215212152275951190611906
23M1.25 mi28232+1612145+712145+7273591178411784
24M1.00 mi28221+1112142+312142+3275651191711917
40K0.85 mi28192+2912128+1412128+14268691158511585
25.2M0.35 mi28193-112129-112129-1277501200412004
Finish(26.22 mi)1.02 mi28187+612127+212127+2276091191711917

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 99%
×21story building
+97ft-345ft

Overall

28030

Females

11994

F45-49

11994

5K→10K

3.1 - 6.2 mi

Top 99%
×5story building
+79ft-138ft

Overall

28202

Females

12102

F45-49

12102

10K→15K

6.2 - 9.3 mi

Top 99%
×3story building
+67ft-78ft

Overall

28030

Females

11994

F45-49

11994

15K→20K

9.3 - 12.4 mi

Top 99%
×5story building
+106ft-86ft

Overall

28111

Females

12065

F45-49

12065

20K→Half

12.4 - 13.1 mi

Top 99%
×2story building
+19ft-37ft

Overall

28166

Females

12108

F45-49

12108

Half→25K

13.1 - 15.5 mi

Top 99%
×4story building
+66ft-88ft

Overall

28247

Females

12152

F45-49

12152

25K→30K

15.5 - 18.6 mi

Top 99%
×9story building
+181ft-148ft

Overall

28038

Females

12071

F45-49

12071

30K→20M

18.6 - 20.0 mi

Top 98%
×5story building
+64ft-50ft

Overall

27695

Females

11916

F45-49

11916

20M→21M

20.0 - 21.0 mi

Top 98%
×8story building
+106ft-24ft

Overall

27860

Females

11988

F45-49

11988

21M→35K

21.0 - 21.8 mi

Top 97%
×7story building
+17ft-86ft

Overall

27595

Females

11906

F45-49

11906

35K→23M

21.8 - 23.0 mi

Top 96%
×5story building
+23ft-63ft

Overall

27359

Females

11784

F45-49

11784

23M→24M

23.0 - 24.0 mi

Top 97%
×6story building
+12ft-82ft

Overall

27565

Females

11917

F45-49

11917

24M→40K

24.0 - 24.9 mi

Top 95%
×1story
+6ft-20ft

Overall

26869

Females

11585

F45-49

11585

40K→25.2M

24.9 - 25.2 mi

Top 98%
×1story
+13ft-16ft

Overall

27750

Females

12004

F45-49

12004

25.2M→Finish

25.2 - 26.2 mi

Top 97%
×2story building
+22ft-21ft

Overall

27609

Females

11917

F45-49

11917

Passing Analysis

Category:
Passed
258
Passed By
151
Net Change
+107
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#28294
5K → 10K3910+29#28294#28265
10K → 15K4510+35#28265#28230
15K → 20K2734-7#28230#28237
20K → Half1110+1#28237#28236
Half → 25K945-36#28236#28272
25K → 30K2120+1#28272#28271
30K → 20M170+17#28271#28254
20M → 21M98+1#28254#28253
21M → 35K61+5#28253#28248
35K → 23M171+16#28248#28232
23M → 24M132+11#28232#28221
24M → 40K301+29#28221#28192
40K → 25.2M23-1#28192#28193
25.2M → Finish126+6#28193#28187
TOTALS258151+107

Passing Charts

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