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BOSTON MARATHON 2023

Amy Crain

Bib: 8338•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 10%
Gender (Female)
#0 / 11423
Top 1%
Masters (Masters Women)
#0 / 6539
Top 0.3%
Division (F40-44)
#0 / 1878
Top 0.9%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:23
Rank: #2628
Start → 5K
20:23 | 6:34/mi
10K· 6.21 mi
40:55
Rank: #3056 (-428)
5K → 10K
20:32 | 6:37/mi
15K· 9.32 mi
1:01:23
Rank: #3100 (-44)
10K → 15K
20:28 | 6:35/mi
20K· 12.43 mi
1:22:04
Rank: #3114 (-14)
15K → 20K
20:41 | 6:39/mi
Half· 13.11 mi
1:26:29
Rank: #3079 (+35)
20K → Half
4:25 | 6:28/mi
25K· 15.53 mi
1:42:32
Rank: #3005 (+74)
Half → 25K
16:03 | 6:37/mi
30K· 18.64 mi
2:03:42
Rank: #2949 (+56)
25K → 30K
21:10 | 6:49/mi
20M
2:13:08
Rank: #2981 (-32)
30K → 20M
9:26 | 6:56/mi
21M
2:20:04
Rank: #2878 (+103)
20M → 21M
6:56 | 6:56/mi
35K· 21.75 mi
2:24:56
Rank: #2852 (+26)
21M → 35K
4:52 | 6:30/mi
23M
2:33:30
Rank: #2815 (+37)
35K → 23M
8:34 | 6:51/mi
24M
2:40:05
Rank: #2772 (+43)
23M → 24M
6:35 | 6:35/mi
40K· 24.85 mi
2:45:56
Rank: #2753 (+19)
24M → 40K
5:51 | 6:50/mi
25.2M
2:48:17
Rank: #2711 (+42)
40K → 25.2M
2:21 | 6:50/mi
Finish· 26.22 mi
2:55:02
Rank: #2704 (+7)
25.2M → Finish
6:45 | 6:37/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:29
Pace6:36 /mi
2nd Half
Distance13.11 mi
Time1:28:33
Pace6:45 /mi
📊Positive Split: 2.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:45:3020:236:3420:23
6:34
-
10K
6.21 mi11:06:0240:556:3520:32
6:37
+0:03
15K
9.32 mi11:26:301:01:236:3520:28
6:35
-0:02
20K
12.43 mi11:47:111:22:046:3620:41
6:39
+0:04
Half
13.11 mi11:51:361:26:296:364:25
6:28
-0:11
25K
15.53 mi12:07:391:42:326:3616:03
6:37
+0:09
30K
18.64 mi12:28:492:03:426:3821:10
6:49
+0:12
20M
20.00 mi12:38:152:13:086:399:26
6:56
+0:07
21M
21.00 mi12:45:112:20:046:406:56
6:56
0:00
35K
21.75 mi12:50:032:24:566:404:52
6:30
-0:26
23M
23.00 mi12:58:372:33:306:408:34
6:51
+0:21
24M
24.00 mi13:05:122:40:056:406:35
6:35
-0:16
40K
24.85 mi13:11:032:45:566:415:51
6:50
+0:15
25.2M
25.20 mi13:13:242:48:176:412:21
6:50
0:00
Finish
26.22 mi13:20:092:55:026:416:45
6:37
-0:13

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

6:28 /mi

Average Pace

6:41 /mi

Slowest Pace

6:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:00:44

69% of race

Time at Steady Pace

54:18

31% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:41 /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 mi10:45:3020:236:3420:23
6:34
#2628
10K
6.21 mi11:06:0240:556:3520:32
6:37
#3056
15K
9.32 mi11:26:301:01:236:3520:28
6:35
#3100
20K
12.43 mi11:47:111:22:046:3620:41
6:39
#3114
Half
13.11 mi11:51:361:26:296:364:25
6:28
#3079
25K
15.53 mi12:07:391:42:326:3616:03
6:37
#3005
30K
18.64 mi12:28:492:03:426:3821:10
6:49
#2949
20M
20.00 mi12:38:152:13:086:399:26
6:56
#2981
21M
21.00 mi12:45:112:20:046:406:56
6:56
#2878
35K
21.75 mi12:50:032:24:566:404:52
6:30
#2852
23M
23.00 mi12:58:372:33:306:408:34
6:51
#2815
24M
24.00 mi13:05:122:40:056:406:35
6:35
#2772
40K
24.85 mi13:11:032:45:566:415:51
6:50
#2753
25.2M
25.20 mi13:13:242:48:176:412:21
6:50
#2711
Finish
26.22 mi13:20:092:55:026:416:45
6:37
#2704
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi26281221223213(Top 12%)153(Top 1%)153(Top 8%)
10K6.21 mi3.10 mi3056-428144-22144-223576(Top 13%)193(Top 2%)193(Top 10%)
15K9.32 mi3.11 mi3100-441441443213(Top 12%)153(Top 1%)153(Top 8%)
20K12.43 mi3.11 mi3114-14143+1143+13249(Top 12%)163(Top 1%)163(Top 9%)
Half13.11 mi0.68 mi3079+35141+2141+22705(Top 10%)110(Top 1.0%)110(Top 6%)
25K15.53 mi2.42 mi3005+74133+8133+82835(Top 11%)125(Top 1%)125(Top 7%)
30K18.64 mi3.11 mi2949+56130+3130+33085(Top 12%)168(Top 1%)168(Top 9%)
20M20.00 mi1.36 mi2981-32136-6136-63632(Top 14%)245(Top 2%)245(Top 13%)
21M21.00 mi1.00 mi2878+103128+8128+81906(Top 7%)97(Top 0.8%)97(Top 5%)
35K21.75 mi0.75 mi2852+261281282491(Top 9%)131(Top 1%)131(Top 7%)
23M23.00 mi1.25 mi2815+37131-3131-32929(Top 11%)190(Top 2%)190(Top 10%)
24M24.00 mi1.00 mi2772+431311312513(Top 9%)165(Top 1%)165(Top 9%)
40K24.85 mi0.85 mi2753+19134-3134-32987(Top 11%)240(Top 2%)240(Top 13%)
25.2M25.20 mi0.35 mi2711+42126+8126+81263(Top 5%)68(Top 0.6%)68(Top 4%)
Finish26.22 mi1.02 mi2704+7129-3129-33138(Top 12%)306(Top 3%)306(Top 16%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21stories
+97ft-345ft

Overall

3213

Females

153

F40-44

153

5K→10K

3.1 - 6.2 mi

Top 13%
×5stories
+79ft-138ft

Overall

3576

Females

193

F40-44

193

10K→15K

6.2 - 9.3 mi

Top 12%
×3stories
+67ft-78ft

Overall

3213

Females

153

F40-44

153

15K→20K

9.3 - 12.4 mi

Top 12%
×5stories
+106ft-86ft

Overall

3249

Females

163

F40-44

163

20K→Half

12.4 - 13.1 mi

Top 10%
×2stories
+19ft-37ft

Overall

2705

Females

110

F40-44

110

Half→25K

13.1 - 15.5 mi

Top 11%
×4stories
+66ft-88ft

Overall

2835

Females

125

F40-44

125

25K→30K

15.5 - 18.6 mi

Top 12%
×9stories
+181ft-148ft

Overall

3085

Females

168

F40-44

168

30K→20M

18.6 - 20.0 mi

Top 14%
×5stories
+64ft-50ft

Overall

3632

Females

245

F40-44

245

20M→21M

20.0 - 21.0 mi

Top 7%
×8stories
+106ft-24ft

Overall

1906

Females

97

F40-44

97

21M→35K

21.0 - 21.8 mi

Top 9%
×7stories
+17ft-86ft

Overall

2491

Females

131

F40-44

131

35K→23M

21.8 - 23.0 mi

Top 11%
×5stories
+23ft-63ft

Overall

2929

Females

190

F40-44

190

23M→24M

23.0 - 24.0 mi

Top 9%
×6stories
+12ft-82ft

Overall

2513

Females

165

F40-44

165

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

2987

Females

240

F40-44

240

40K→25.2M

24.9 - 25.2 mi

Top 5%
×1story
+13ft-16ft

Overall

1263

Females

68

F40-44

68

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2stories
+22ft-21ft

Overall

3138

Females

306

F40-44

306

Passing Analysis

Category:
Athletes Passed
888
Passed By
964
Net Change
-76
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2628
5K → 10K41469-428#2628#3056
10K → 15K68112-44#3056#3100
15K → 20K8296-14#3100#3114
20K → Half394+35#3114#3079
Half → 25K9723+74#3079#3005
25K → 30K11660+56#3005#2949
30K → 20M3264-32#2949#2981
20M → 21M1063+103#2981#2878
21M → 35K4418+26#2878#2852
35K → 23M6831+37#2852#2815
23M → 24M6320+43#2815#2772
24M → 40K5031+19#2772#2753
40K → 25.2M431+42#2753#2711
25.2M → Finish3932+7#2711#2704
TOTALS888964-76
📊

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