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BOSTON MARATHON 2023

Molly Crotteau

CA

Bib: 10354 F

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 27%
Gender (Female)
#0 / 11423
Top 9%
Division (F18-39)
#0 / 4884
Top 17%
Race Day Weather
49°/39°F
light intensity drizzle

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
6:59/mi
21:42
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
6:51/mi
42:58
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
6:53/mi
1:04:20
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:13/mi
1:26:46
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:14/mi
1:31:42
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:35/mi
1:50:04
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:53/mi
2:14:33
↑ 181↓ 1480.2%
138 ft elev
20M
7:49/mi
2:25:10
↑ 64↓ 500.2%
148 ft elev
21M
8:21/mi
2:33:31
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:28/mi
2:39:06
↑ 17↓ 861.7%
156 ft elev
23M
7:55/mi
2:49:01
↑ 23↓ 630.6%
116 ft elev
24M
7:39/mi
2:56:40
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:31/mi
3:03:06
↓ 200.3%
20 ft elev
25.2M
8:16/mi
3:05:57
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:26/mi
3:13:32
↑ 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
1:31:427:00 /mi⚡ faster
2nd Half
1:41:507:46 /mi+11.1%
Positive split — 11.1% 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
21:426:593.11 mi21:42
6:59
-
10K
42:586:553.10 mi21:16
6:51
-0:08
15K
1:04:206:543.11 mi21:22
6:53
+0:02
20K
1:26:466:593.11 mi22:26
7:13
+0:20
Half(13.11 mi)
1:31:427:000.68 mi4:56
7:14
+0:01
25K
1:50:047:052.42 mi18:22
7:35
+0:21
30K
2:14:337:133.11 mi24:29
7:53
+0:18
20M
2:25:107:151.36 mi10:37
7:49
-0:04
21M
2:33:317:191.00 mi8:21
8:21
+0:32
35K
2:39:067:190.75 mi5:35
7:28
-0:53
23M
2:49:017:211.25 mi9:55
7:55
+0:27
24M
2:56:407:221.00 mi7:39
7:39
-0:16
40K
3:03:067:220.85 mi6:26
7:31
-0:08
25.2M
3:05:577:230.35 mi2:51
8:16
+0:45
Finish(26.22 mi)
3:13:327:231.02 mi7:35
7:26
-0:50
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

6:51 /mi

Average Pace

7:23 /mi

Slowest Pace

8:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

1:31:42

47% of race

Time at Steady Pace

45:37

24% of race

Time at Slower Pace

56:13

29% of race

Average Pace: 7:23 /mi

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

Heatmap

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

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi61725325325811494494
10K3.10 mi5941+231497+35497+355722480480
15K3.11 mi5863+78485+12485+125811494494
20K3.11 mi6248-385577-92577-927237855855
Half(13.11 mi)0.68 mi6337-89595-18595-18813511411141
25K2.42 mi6702-365684-89684-89935317021702
30K3.11 mi7089-387802-118802-118998321502150
20M1.36 mi7173-84836-34836-34897217771777
21M1.00 mi7267-94887-51887-51953921532153
35K0.75 mi7276-9906-19906-19829415961596
23M1.25 mi7336-60955-49955-49922121242124
24M1.00 mi7352-16974-19974-19876419761976
40K0.85 mi7312+40980-6980-6687613071307
25.2M0.35 mi7310+2991-11991-11812218491849
Finish(26.22 mi)1.02 mi7303+71016-251016-25810018641864

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 22%
×21story building
+97ft-345ft

Overall

5811

Females

494

F18-39

494

5K→10K

3.1 - 6.2 mi

Top 21%
×5story building
+79ft-138ft

Overall

5722

Females

480

F18-39

480

10K→15K

6.2 - 9.3 mi

Top 22%
×3story building
+67ft-78ft

Overall

5811

Females

494

F18-39

494

15K→20K

9.3 - 12.4 mi

Top 27%
×5story building
+106ft-86ft

Overall

7237

Females

855

F18-39

855

20K→Half

12.4 - 13.1 mi

Top 31%
×2story building
+19ft-37ft

Overall

8135

Females

1141

F18-39

1141

Half→25K

13.1 - 15.5 mi

Top 35%
×4story building
+66ft-88ft

Overall

9353

Females

1702

F18-39

1702

25K→30K

15.5 - 18.6 mi

Top 37%
×9story building
+181ft-148ft

Overall

9983

Females

2150

F18-39

2150

30K→20M

18.6 - 20.0 mi

Top 34%
×5story building
+64ft-50ft

Overall

8972

Females

1777

F18-39

1777

20M→21M

20.0 - 21.0 mi

Top 36%
×8story building
+106ft-24ft

Overall

9539

Females

2153

F18-39

2153

21M→35K

21.0 - 21.8 mi

Top 31%
×7story building
+17ft-86ft

Overall

8294

Females

1596

F18-39

1596

35K→23M

21.8 - 23.0 mi

Top 35%
×5story building
+23ft-63ft

Overall

9221

Females

2124

F18-39

2124

23M→24M

23.0 - 24.0 mi

Top 33%
×6story building
+12ft-82ft

Overall

8764

Females

1976

F18-39

1976

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

6876

Females

1307

F18-39

1307

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8122

Females

1849

F18-39

1849

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×2story building
+22ft-21ft

Overall

8100

Females

1864

F18-39

1864

Passing Analysis

Category:
Passed
948
Passed By
2079
Net Change
-1131
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6172
5K → 10K31988+231#6172#5941
10K → 15K16890+78#5941#5863
15K → 20K24409-385#5863#6248
20K → Half392-89#6248#6337
Half → 25K17382-365#6337#6702
25K → 30K35422-387#6702#7089
30K → 20M33117-84#7089#7173
20M → 21M36130-94#7173#7267
21M → 35K4251-9#7267#7276
35K → 23M54114-60#7276#7336
23M → 24M5066-16#7336#7352
24M → 40K7333+40#7352#7312
40K → 25.2M2119+2#7312#7310
25.2M → Finish7366+7#7310#7303
TOTALS9482079-1131

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