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BOSTON MARATHON 2023

Rachel Foster

Bib: 12641•F

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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
32:38
Rank: #24729
Start → 5K
32:38 | 10:30/mi
10K· 6.21 mi
1:05:24
Rank: #24758 (-29)
5K → 10K
32:46 | 10:33/mi
15K· 9.32 mi
1:41:40
Rank: #25316 (-558)
10K → 15K
36:16 | 11:40/mi
20K· 12.43 mi
2:24:18
Rank: #25891 (-575)
15K → 20K
42:38 | 13:43/mi
Half· 13.11 mi
2:33:10
Rank: #25928 (-37)
20K → Half
8:52 | 13:00/mi
25K· 15.53 mi
3:07:32
Rank: #26061 (-133)
Half → 25K
34:22 | 14:10/mi
30K· 18.64 mi
3:56:27
Rank: #26242 (-181)
25K → 30K
48:55 | 15:45/mi
20M
4:16:33
Rank: #26246 (-4)
30K → 20M
20:06 | 14:47/mi
21M
4:32:20
Rank: #26256 (-10)
20M → 21M
15:47 | 15:47/mi
35K· 21.75 mi
4:43:14
Rank: #26272 (-16)
21M → 35K
10:54 | 14:34/mi
23M
5:01:26
Rank: #26271 (+1)
35K → 23M
18:12 | 14:32/mi
24M
5:14:49
Rank: #26258 (+13)
23M → 24M
13:23 | 13:23/mi
40K· 24.85 mi
5:27:07
Rank: #26258
24M → 40K
12:18 | 14:23/mi
25.2M
5:31:54
Rank: #26251 (+7)
40K → 25.2M
4:47 | 13:52/mi
Finish· 26.22 mi
5:44:46
Rank: #26240 (+11)
25.2M → Finish
12:52 | 12:38/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:33:10
Pace11:41 /mi
2nd Half
Distance13.11 mi
Time3:11:36
Pace14:37 /mi
📊Positive Split: 25.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:2332:3810:3032:38
10:30
-
10K
6.21 mi12:21:091:05:2410:3232:46
10:33
+0:03
15K
9.32 mi12:57:251:41:4010:5436:16
11:40
+1:07
20K
12.43 mi13:40:032:24:1811:3742:38
13:43
+2:03
Half
13.11 mi13:48:552:33:1011:418:52
13:00
-0:43
25K
15.53 mi14:23:173:07:3212:0434:22
14:10
+1:10
30K
18.64 mi15:12:123:56:2712:4148:55
15:45
+1:35
20M
20.00 mi15:32:184:16:3312:5020:06
14:47
-0:58
21M
21.00 mi15:48:054:32:2012:5815:47
15:47
+1:00
35K
21.75 mi15:58:594:43:1413:0110:54
14:34
-1:13
23M
23.00 mi16:17:115:01:2613:0618:12
14:32
-0:02
24M
24.00 mi16:30:345:14:4913:0713:23
13:23
-1:09
40K
24.85 mi16:42:525:27:0713:1012:18
14:23
+1:00
25.2M
25.20 mi16:47:395:31:5413:104:47
13:52
-0:31
Finish
26.22 mi17:00:315:44:4613:1012:52
12:38
-1:14

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

10:30 /mi

Average Pace

13:10 /mi

Slowest Pace

15:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:03:24

36% of race

Time at Steady Pace

2:16:34

40% of race

Time at Slower Pace

1:24:48

25% of race

Average Pace: 13:09 /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 mi11:48:2332:3810:3032:38
10:30
#24729
10K
6.21 mi12:21:091:05:2410:3232:46
10:33
#24758
15K
9.32 mi12:57:251:41:4010:5436:16
11:40
#25316
20K
12.43 mi13:40:032:24:1811:3742:38
13:43
#25891
Half
13.11 mi13:48:552:33:1011:418:52
13:00
#25928
25K
15.53 mi14:23:173:07:3212:0434:22
14:10
#26061
30K
18.64 mi15:12:123:56:2712:4148:55
15:45
#26242
20M
20.00 mi15:32:184:16:3312:5020:06
14:47
#26246
21M
21.00 mi15:48:054:32:2012:5815:47
15:47
#26256
35K
21.75 mi15:58:594:43:1413:0110:54
14:34
#26272
23M
23.00 mi16:17:115:01:2613:0618:12
14:32
#26271
24M
24.00 mi16:30:345:14:4913:0713:23
13:23
#26258
40K
24.85 mi16:42:525:27:0713:1012:18
14:23
#26258
25.2M
25.20 mi16:47:395:31:5413:104:47
13:52
#26251
Finish
26.22 mi17:00:315:44:4613:1012:52
12:38
#26240
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi24729102901029025855(Top 97%)10953(Top 96%)10953(Top 224%)
10K6.21 mi3.10 mi24758-2910301-1110301-1124765(Top 93%)10311(Top 90%)10311(Top 211%)
15K9.32 mi3.11 mi25316-55810623-32210623-32225855(Top 97%)10953(Top 96%)10953(Top 224%)
20K12.43 mi3.11 mi25891-57510968-34510968-34526480(Top 99%)11338(Top 99%)11338(Top 232%)
Half13.11 mi0.68 mi25928-3710992-2410992-2426355(Top 99%)11277(Top 99%)11277(Top 231%)
25K15.53 mi2.42 mi26061-13311081-8911081-8926410(Top 99%)11311(Top 99%)11311(Top 232%)
30K18.64 mi3.11 mi26242-18111191-11011191-11026548(Top 100%)11385(Top 100%)11385(Top 233%)
20M20.00 mi1.36 mi26246-411203-1211203-1226227(Top 99%)11244(Top 98%)11244(Top 230%)
21M21.00 mi1.00 mi26256-1011210-711210-726146(Top 98%)11196(Top 98%)11196(Top 229%)
35K21.75 mi0.75 mi26272-1611222-1211222-1226325(Top 99%)11290(Top 99%)11290(Top 231%)
23M23.00 mi1.25 mi26271+111225-311225-326137(Top 98%)11204(Top 98%)11204(Top 229%)
24M24.00 mi1.00 mi26258+1311221+411221+425737(Top 97%)11043(Top 97%)11043(Top 226%)
40K24.85 mi0.85 mi2625811220+111220+125903(Top 97%)11131(Top 97%)11131(Top 228%)
25.2M25.20 mi0.35 mi26251+711213+711213+724929(Top 94%)10666(Top 93%)10666(Top 218%)
Finish26.22 mi1.02 mi26240+1111212+111212+125763(Top 97%)11056(Top 97%)11056(Top 226%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 97%
×21stories
+97ft-345ft

Overall

25855

Females

10953

F18-39

10953

5K→10K

3.1 - 6.2 mi

Top 93%
×5stories
+79ft-138ft

Overall

24765

Females

10311

F18-39

10311

10K→15K

6.2 - 9.3 mi

Top 97%
×3stories
+67ft-78ft

Overall

25855

Females

10953

F18-39

10953

15K→20K

9.3 - 12.4 mi

Top 99%
×5stories
+106ft-86ft

Overall

26480

Females

11338

F18-39

11338

20K→Half

12.4 - 13.1 mi

Top 99%
×2stories
+19ft-37ft

Overall

26355

Females

11277

F18-39

11277

Half→25K

13.1 - 15.5 mi

Top 99%
×4stories
+66ft-88ft

Overall

26410

Females

11311

F18-39

11311

25K→30K

15.5 - 18.6 mi

Top 100%
×9stories
+181ft-148ft

Overall

26548

Females

11385

F18-39

11385

30K→20M

18.6 - 20.0 mi

Top 99%
×5stories
+64ft-50ft

Overall

26227

Females

11244

F18-39

11244

20M→21M

20.0 - 21.0 mi

Top 98%
×8stories
+106ft-24ft

Overall

26146

Females

11196

F18-39

11196

21M→35K

21.0 - 21.8 mi

Top 99%
×7stories
+17ft-86ft

Overall

26325

Females

11290

F18-39

11290

35K→23M

21.8 - 23.0 mi

Top 98%
×5stories
+23ft-63ft

Overall

26137

Females

11204

F18-39

11204

23M→24M

23.0 - 24.0 mi

Top 97%
×6stories
+12ft-82ft

Overall

25737

Females

11043

F18-39

11043

24M→40K

24.0 - 24.9 mi

Top 97%
×1story
+6ft-20ft

Overall

25903

Females

11131

F18-39

11131

40K→25.2M

24.9 - 25.2 mi

Top 94%
×1story
+13ft-16ft

Overall

24929

Females

10666

F18-39

10666

25.2M→Finish

25.2 - 26.2 mi

Top 97%
×2stories
+22ft-21ft

Overall

25763

Females

11056

F18-39

11056

Passing Analysis

Category:
Athletes Passed
310
Passed By
1821
Net Change
-1511
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24729
5K → 10K176205-29#24729#24758
10K → 15K9567-558#24758#25316
15K → 20K4579-575#25316#25891
20K → Half239-37#25891#25928
Half → 25K6139-133#25928#26061
25K → 30K4185-181#26061#26242
30K → 20M2125-4#26242#26246
20M → 21M1222-10#26246#26256
21M → 35K824-16#26256#26272
35K → 23M1514+1#26272#26271
23M → 24M207+13#26271#26258
24M → 40K12120#26258#26258
40K → 25.2M81+7#26258#26251
25.2M → Finish132+11#26251#26240
TOTALS3101821-1511
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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