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BOSTON MARATHON 2023

Caitlin Roston

Bib: 9908•F

CT

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 37%
Gender (Female)
#0 / 11423
Top 18%
Division (F18-39)
#0 / 4884
Top 31%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:41
Rank: #8122
Start → 5K
22:41 | 7:18/mi
10K· 6.21 mi
44:54
Rank: #7944 (+178)
5K → 10K
22:13 | 7:09/mi
15K· 9.32 mi
1:07:14
Rank: #7850 (+94)
10K → 15K
22:20 | 7:11/mi
20K· 12.43 mi
1:30:26
Rank: #8092 (-242)
15K → 20K
23:12 | 7:28/mi
Half· 13.11 mi
1:35:24
Rank: #8098 (-6)
20K → Half
4:58 | 7:17/mi
25K· 15.53 mi
1:53:48
Rank: #8273 (-175)
Half → 25K
18:24 | 7:35/mi
30K· 18.64 mi
2:18:23
Rank: #8550 (-277)
25K → 30K
24:35 | 7:55/mi
20M
2:29:38
Rank: #8806 (-256)
30K → 20M
11:15 | 8:17/mi
21M
2:38:22
Rank: #8970 (-164)
20M → 21M
8:44 | 8:44/mi
35K· 21.75 mi
2:44:23
Rank: #9079 (-109)
21M → 35K
6:01 | 8:03/mi
23M
2:54:45
Rank: #9217 (-138)
35K → 23M
10:22 | 8:17/mi
24M
3:02:59
Rank: #9337 (-120)
23M → 24M
8:14 | 8:14/mi
40K· 24.85 mi
3:10:21
Rank: #9506 (-169)
24M → 40K
7:22 | 8:37/mi
25.2M
3:13:34
Rank: #9565 (-59)
40K → 25.2M
3:13 | 9:20/mi
Finish· 26.22 mi
3:22:19
Rank: #9835 (-270)
25.2M → Finish
8:45 | 8:35/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:24
Pace7:17 /mi
2nd Half
Distance13.11 mi
Time1:46:55
Pace8:09 /mi
📊Positive Split: 12.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:1622:417:1822:41
7:18
-
10K
6.21 mi11:10:2944:547:1422:13
7:09
-0:09
15K
9.32 mi11:32:491:07:147:1322:20
7:11
+0:02
20K
12.43 mi11:56:011:30:267:1723:12
7:28
+0:17
Half
13.11 mi12:00:591:35:247:174:58
7:17
-0:11
25K
15.53 mi12:19:231:53:487:2018:24
7:35
+0:18
30K
18.64 mi12:43:582:18:237:2524:35
7:55
+0:20
20M
20.00 mi12:55:132:29:387:2911:15
8:17
+0:22
21M
21.00 mi13:03:572:38:227:328:44
8:44
+0:27
35K
21.75 mi13:09:582:44:237:346:01
8:03
-0:41
23M
23.00 mi13:20:202:54:457:3610:22
8:17
+0:14
24M
24.00 mi13:28:343:02:597:378:14
8:14
-0:03
40K
24.85 mi13:35:563:10:217:407:22
8:37
+0:23
25.2M
25.20 mi13:39:093:13:347:413:13
9:20
+0:43
Finish
26.22 mi13:47:543:22:197:438:45
8:35
-0:45

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

7:09 /mi

Average Pace

7:43 /mi

Slowest Pace

9:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:53:48

56% of race

Time at Steady Pace

1:00:27

30% of race

Time at Slower Pace

28:04

14% of race

Average Pace: 7:43 /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 mi10:48:1622:417:1822:41
7:18
#8122
10K
6.21 mi11:10:2944:547:1422:13
7:09
#7944
15K
9.32 mi11:32:491:07:147:1322:20
7:11
#7850
20K
12.43 mi11:56:011:30:267:1723:12
7:28
#8092
Half
13.11 mi12:00:591:35:247:174:58
7:17
#8098
25K
15.53 mi12:19:231:53:487:2018:24
7:35
#8273
30K
18.64 mi12:43:582:18:237:2524:35
7:55
#8550
20M
20.00 mi12:55:132:29:387:2911:15
8:17
#8806
21M
21.00 mi13:03:572:38:227:328:44
8:44
#8970
35K
21.75 mi13:09:582:44:237:346:01
8:03
#9079
23M
23.00 mi13:20:202:54:457:3610:22
8:17
#9217
24M
24.00 mi13:28:343:02:597:378:14
8:14
#9337
40K
24.85 mi13:35:563:10:217:407:22
8:37
#9506
25.2M
25.20 mi13:39:093:13:347:413:13
9:20
#9565
Finish
26.22 mi13:47:543:22:197:438:45
8:35
#9835
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi8122105910597746(Top 29%)988(Top 9%)988(Top 20%)
10K6.21 mi3.10 mi7944+178999+60999+607790(Top 29%)983(Top 9%)983(Top 20%)
15K9.32 mi3.11 mi7850+94986+13986+137746(Top 29%)988(Top 9%)988(Top 20%)
20K12.43 mi3.11 mi8092-2421082-961082-969070(Top 34%)1522(Top 13%)1522(Top 31%)
Half13.11 mi0.68 mi8098-61085-31085-38536(Top 32%)1315(Top 12%)1315(Top 27%)
25K15.53 mi2.42 mi8273-1751179-941179-949478(Top 36%)1769(Top 15%)1769(Top 36%)
30K18.64 mi3.11 mi8550-2771314-1351314-13510235(Top 38%)2270(Top 20%)2270(Top 46%)
20M20.00 mi1.36 mi8806-2561429-1151429-11512211(Top 46%)3393(Top 30%)3393(Top 69%)
21M21.00 mi1.00 mi8970-1641522-931522-9311879(Top 45%)3326(Top 29%)3326(Top 68%)
35K21.75 mi0.75 mi9079-1091578-561578-5612433(Top 47%)3652(Top 32%)3652(Top 75%)
23M23.00 mi1.25 mi9217-1381662-841662-8411750(Top 44%)3372(Top 30%)3372(Top 69%)
24M24.00 mi1.00 mi9337-1201728-661728-6612829(Top 48%)4028(Top 35%)4028(Top 82%)
40K24.85 mi0.85 mi9506-1691829-1011829-10114051(Top 53%)4762(Top 42%)4762(Top 98%)
25.2M25.20 mi0.35 mi9565-591871-421871-4214322(Top 54%)4892(Top 43%)4892(Top 100%)
Finish26.22 mi1.02 mi9835-2702021-1502021-15015911(Top 60%)5746(Top 50%)5746(Top 118%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 29%
×21stories
+97ft-345ft

Overall

7746

Females

988

F18-39

988

5K→10K

3.1 - 6.2 mi

Top 29%
×5stories
+79ft-138ft

Overall

7790

Females

983

F18-39

983

10K→15K

6.2 - 9.3 mi

Top 29%
×3stories
+67ft-78ft

Overall

7746

Females

988

F18-39

988

15K→20K

9.3 - 12.4 mi

Top 34%
×5stories
+106ft-86ft

Overall

9070

Females

1522

F18-39

1522

20K→Half

12.4 - 13.1 mi

Top 32%
×2stories
+19ft-37ft

Overall

8536

Females

1315

F18-39

1315

Half→25K

13.1 - 15.5 mi

Top 36%
×4stories
+66ft-88ft

Overall

9478

Females

1769

F18-39

1769

25K→30K

15.5 - 18.6 mi

Top 38%
×9stories
+181ft-148ft

Overall

10235

Females

2270

F18-39

2270

30K→20M

18.6 - 20.0 mi

Top 46%
×5stories
+64ft-50ft

Overall

12211

Females

3393

F18-39

3393

20M→21M

20.0 - 21.0 mi

Top 45%
×8stories
+106ft-24ft

Overall

11879

Females

3326

F18-39

3326

21M→35K

21.0 - 21.8 mi

Top 47%
×7stories
+17ft-86ft

Overall

12433

Females

3652

F18-39

3652

35K→23M

21.8 - 23.0 mi

Top 44%
×5stories
+23ft-63ft

Overall

11750

Females

3372

F18-39

3372

23M→24M

23.0 - 24.0 mi

Top 48%
×6stories
+12ft-82ft

Overall

12829

Females

4028

F18-39

4028

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

14051

Females

4762

F18-39

4762

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

14322

Females

4892

F18-39

4892

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2stories
+22ft-21ft

Overall

15911

Females

5746

F18-39

5746

Passing Analysis

Category:
Athletes Passed
966
Passed By
2679
Net Change
-1713
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8122
5K → 10K334156+178#8122#7944
10K → 15K19197+94#7944#7850
15K → 20K66308-242#7850#8092
20K → Half2329-6#8092#8098
Half → 25K59234-175#8098#8273
25K → 30K73350-277#8273#8550
30K → 20M29285-256#8550#8806
20M → 21M41205-164#8806#8970
21M → 35K18127-109#8970#9079
35K → 23M44182-138#9079#9217
23M → 24M31151-120#9217#9337
24M → 40K24193-169#9337#9506
40K → 25.2M2079-59#9506#9565
25.2M → Finish13283-270#9565#9835
TOTALS9662679-1713
📊

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