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BOSTON MARATHON 2023

Rebecca Gast

Bib: 17842•F

MI

0:00
0:00
/ mi
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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
25:15
Rank: #14934
Start → 5K
25:15 | 8:08/mi
10K· 6.21 mi
50:35
Rank: #15401 (-467)
5K → 10K
25:20 | 8:09/mi
15K· 9.32 mi
1:16:05
Rank: #15575 (-174)
10K → 15K
25:30 | 8:12/mi
20K· 12.43 mi
1:42:53
Rank: #16120 (-545)
15K → 20K
26:48 | 8:38/mi
Half· 13.11 mi
1:48:37
Rank: #16179 (-59)
20K → Half
5:44 | 8:24/mi
25K· 15.53 mi
2:10:43
Rank: #16830 (-651)
Half → 25K
22:06 | 9:07/mi
30K· 18.64 mi
2:41:37
Rank: #17774 (-944)
25K → 30K
30:54 | 9:57/mi
20M
2:55:25
Rank: #18158 (-384)
30K → 20M
13:48 | 10:09/mi
21M
3:07:27
Rank: #18679 (-521)
20M → 21M
12:02 | 12:02/mi
35K· 21.75 mi
3:14:15
Rank: #18652 (+27)
21M → 35K
6:48 | 9:05/mi
23M
3:26:14
Rank: #18652
35K → 23M
11:59 | 9:34/mi
24M
3:35:35
Rank: #18670 (-18)
23M → 24M
9:21 | 9:21/mi
40K· 24.85 mi
3:43:54
Rank: #18705 (-35)
24M → 40K
8:19 | 9:44/mi
25.2M
3:47:23
Rank: #18697 (+8)
40K → 25.2M
3:29 | 10:06/mi
Finish· 26.22 mi
3:56:56
Rank: #18759 (-62)
25.2M → Finish
9:33 | 9:22/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:37
Pace8:17 /mi
2nd Half
Distance13.11 mi
Time2:08:19
Pace9:47 /mi
📊Positive Split: 18.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:0725:158:0825:15
8:08
-
10K
6.21 mi11:41:2750:358:0825:20
8:09
+0:01
15K
9.32 mi12:06:571:16:058:1025:30
8:12
+0:03
20K
12.43 mi12:33:451:42:538:1726:48
8:38
+0:26
Half
13.11 mi12:39:291:48:378:175:44
8:24
-0:14
25K
15.53 mi13:01:352:10:438:2522:06
9:07
+0:43
30K
18.64 mi13:32:292:41:378:4030:54
9:57
+0:50
20M
20.00 mi13:46:172:55:258:4613:48
10:09
+0:12
21M
21.00 mi13:58:193:07:278:5612:02
12:02
+1:53
35K
21.75 mi14:05:073:14:158:566:48
9:05
-2:57
23M
23.00 mi14:17:063:26:148:5811:59
9:34
+0:29
24M
24.00 mi14:26:273:35:358:599:21
9:21
-0:13
40K
24.85 mi14:34:463:43:549:008:19
9:44
+0:23
25.2M
25.20 mi14:38:153:47:239:013:29
10:06
+0:22
Finish
26.22 mi14:47:483:56:569:039:33
9:22
-0:44

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

8:08 /mi

Average Pace

9:03 /mi

Slowest Pace

12:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:48:37

46% of race

Time at Steady Pace

1:08:06

29% of race

Time at Slower Pace

1:00:13

25% of race

Average Pace: 9:02 /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 mi11:16:0725:158:0825:15
8:08
#14934
10K
6.21 mi11:41:2750:358:0825:20
8:09
#15401
15K
9.32 mi12:06:571:16:058:1025:30
8:12
#15575
20K
12.43 mi12:33:451:42:538:1726:48
8:38
#16120
Half
13.11 mi12:39:291:48:378:175:44
8:24
#16179
25K
15.53 mi13:01:352:10:438:2522:06
9:07
#16830
30K
18.64 mi13:32:292:41:378:4030:54
9:57
#17774
20M
20.00 mi13:46:172:55:258:4613:48
10:09
#18158
21M
21.00 mi13:58:193:07:278:5612:02
12:02
#18679
35K
21.75 mi14:05:073:14:158:566:48
9:05
#18652
23M
23.00 mi14:17:063:26:148:5811:59
9:34
#18652
24M
24.00 mi14:26:273:35:358:599:21
9:21
#18670
40K
24.85 mi14:34:463:43:549:008:19
9:44
#18705
25.2M
25.20 mi14:38:153:47:239:013:29
10:06
#18697
Finish
26.22 mi14:47:483:56:569:039:33
9:22
#18759
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi149344605460515931(Top 60%)5257(Top 46%)5257(Top 108%)
10K6.21 mi3.10 mi15401-4674904-2994904-29915962(Top 60%)5259(Top 46%)5259(Top 108%)
15K9.32 mi3.11 mi15575-1745025-1215025-12115931(Top 60%)5257(Top 46%)5257(Top 108%)
20K12.43 mi3.11 mi16120-5455380-3555380-35517667(Top 66%)6329(Top 55%)6329(Top 130%)
Half13.11 mi0.68 mi16179-595421-415421-4117224(Top 65%)6040(Top 53%)6040(Top 124%)
25K15.53 mi2.42 mi16830-6515852-4315852-43119490(Top 73%)7416(Top 65%)7416(Top 152%)
30K18.64 mi3.11 mi17774-9446420-5686420-56820871(Top 78%)8268(Top 72%)8268(Top 169%)
20M20.00 mi1.36 mi18158-3846675-2556675-25520894(Top 78%)8348(Top 73%)8348(Top 171%)
21M21.00 mi1.00 mi18679-5216973-2986973-29822807(Top 86%)9440(Top 83%)9440(Top 193%)
35K21.75 mi0.75 mi18652+276962+116962+1118300(Top 69%)7001(Top 61%)7001(Top 143%)
23M23.00 mi1.25 mi186526986-246986-2418618(Top 70%)7195(Top 63%)7195(Top 147%)
24M24.00 mi1.00 mi18670-187006-207006-2018665(Top 70%)7257(Top 64%)7257(Top 149%)
40K24.85 mi0.85 mi18705-357039-337039-3319123(Top 72%)7550(Top 66%)7550(Top 155%)
25.2M25.20 mi0.35 mi18697+87046-77046-717824(Top 67%)6874(Top 60%)6874(Top 141%)
Finish26.22 mi1.02 mi18759-627083-377083-3719666(Top 74%)7812(Top 68%)7812(Top 160%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21stories
+97ft-345ft

Overall

15931

Females

5257

F18-39

5257

5K→10K

3.1 - 6.2 mi

Top 60%
×5stories
+79ft-138ft

Overall

15962

Females

5259

F18-39

5259

10K→15K

6.2 - 9.3 mi

Top 60%
×3stories
+67ft-78ft

Overall

15931

Females

5257

F18-39

5257

15K→20K

9.3 - 12.4 mi

Top 66%
×5stories
+106ft-86ft

Overall

17667

Females

6329

F18-39

6329

20K→Half

12.4 - 13.1 mi

Top 65%
×2stories
+19ft-37ft

Overall

17224

Females

6040

F18-39

6040

Half→25K

13.1 - 15.5 mi

Top 73%
×4stories
+66ft-88ft

Overall

19490

Females

7416

F18-39

7416

25K→30K

15.5 - 18.6 mi

Top 78%
×9stories
+181ft-148ft

Overall

20871

Females

8268

F18-39

8268

30K→20M

18.6 - 20.0 mi

Top 78%
×5stories
+64ft-50ft

Overall

20894

Females

8348

F18-39

8348

20M→21M

20.0 - 21.0 mi

Top 86%
×8stories
+106ft-24ft

Overall

22807

Females

9440

F18-39

9440

21M→35K

21.0 - 21.8 mi

Top 69%
×7stories
+17ft-86ft

Overall

18300

Females

7001

F18-39

7001

35K→23M

21.8 - 23.0 mi

Top 70%
×5stories
+23ft-63ft

Overall

18618

Females

7195

F18-39

7195

23M→24M

23.0 - 24.0 mi

Top 70%
×6stories
+12ft-82ft

Overall

18665

Females

7257

F18-39

7257

24M→40K

24.0 - 24.9 mi

Top 72%
×1story
+6ft-20ft

Overall

19123

Females

7550

F18-39

7550

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

17824

Females

6874

F18-39

6874

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2stories
+22ft-21ft

Overall

19666

Females

7812

F18-39

7812

Passing Analysis

Category:
Athletes Passed
692
Passed By
4517
Net Change
-3825
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14934
5K → 10K126593-467#14934#15401
10K → 15K119293-174#15401#15575
15K → 20K54599-545#15575#16120
20K → Half2584-59#16120#16179
Half → 25K30681-651#16179#16830
25K → 30K31975-944#16830#17774
30K → 20M24408-384#17774#18158
20M → 21M8529-521#18158#18679
21M → 35K5528+27#18679#18652
35K → 23M81810#18652#18652
23M → 24M4664-18#18652#18670
24M → 40K4277-35#18670#18705
40K → 25.2M2416+8#18705#18697
25.2M → Finish2789-62#18697#18759
TOTALS6924517-3825
📊

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