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BOSTON MARATHON 2023

Dina St. Claire

Bib: 16700•F

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 47%
Gender (Female)
#0 / 11423
Top 29%
Masters (Masters Women)
#0 / 6539
Top 16%
Division (F50-54)
#0 / 1207
Top 9%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:20
Rank: #12685
Start → 5K
7:50/mi
24:20 split
10K· 6.21 mi
47:54
Rank: #11905 (+780)
5K → 10K
7:35/mi
23:34 split
15K· 9.32 mi
1:11:48
Rank: #11820 (+85)
10K → 15K
7:42/mi
23:54 split
20K· 12.43 mi
1:36:07
Rank: #11831 (-11)
15K → 20K
7:50/mi
24:19 split
Half· 13.11 mi
1:41:18
Rank: #11778 (+53)
20K → Half
7:36/mi
5:11 split
25K· 15.53 mi
2:00:55
Rank: #12052 (-274)
Half → 25K
8:05/mi
19:37 split
30K· 18.64 mi
2:26:46
Rank: #12242 (-190)
25K → 30K
8:19/mi
25:51 split
20M
2:38:12
Rank: #12299 (-57)
30K → 20M
8:25/mi
11:26 split
21M
2:47:22
Rank: #12407 (-108)
20M → 21M
9:10/mi
9:10 split
35K· 21.75 mi
2:53:23
Rank: #12416 (-9)
21M → 35K
8:03/mi
6:01 split
23M
3:03:49
Rank: #12387 (+29)
35K → 23M
8:20/mi
10:26 split
24M
3:12:00
Rank: #12379 (+8)
23M → 24M
8:11/mi
8:11 split
40K· 24.85 mi
3:19:12
Rank: #12409 (-30)
24M → 40K
8:25/mi
7:12 split
25.2M
3:22:17
Rank: #12398 (+11)
40K → 25.2M
8:56/mi
3:05 split
Finish· 26.22 mi
3:30:36
Rank: #12431 (-33)
25.2M → Finish
8:10/mi
8:19 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:18
Pace7:44 /mi
2nd Half
Distance13.11 mi
Time1:49:18
Pace8:20 /mi
📊Positive Split: 7.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:3924:207:5024:20
7:50
-
10K
6.21 mi11:44:1347:547:4323:34
7:35
-0:15
15K
9.32 mi12:08:071:11:487:4223:54
7:42
+0:07
20K
12.43 mi12:32:261:36:077:4424:19
7:50
+0:08
Half
13.11 mi12:37:371:41:187:445:11
7:36
-0:14
25K
15.53 mi12:57:142:00:557:4719:37
8:05
+0:29
30K
18.64 mi13:23:052:26:467:5225:51
8:19
+0:14
20M
20.00 mi13:34:312:38:127:5511:26
8:25
+0:06
21M
21.00 mi13:43:412:47:227:589:10
9:10
+0:45
35K
21.75 mi13:49:422:53:237:586:01
8:03
-1:07
23M
23.00 mi14:00:083:03:498:0010:26
8:20
+0:17
24M
24.00 mi14:08:193:12:008:008:11
8:11
-0:09
40K
24.85 mi14:15:313:19:128:017:12
8:25
+0:14
25.2M
25.20 mi14:18:363:22:178:023:05
8:56
+0:31
Finish
26.22 mi14:26:553:30:368:028:19
8:10
-0:46

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

7:35 /mi

Average Pace

8:02 /mi

Slowest Pace

9:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:41:18

48% of race

Time at Steady Pace

1:18:25

37% of race

Time at Slower Pace

30:53

15% of race

Average Pace: 8:02 /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 mi11:20:3924:207:5024:20
7:50
#12685
10K
6.21 mi11:44:1347:547:4323:34
7:35
#11905
15K
9.32 mi12:08:071:11:487:4223:54
7:42
#11820
20K
12.43 mi12:32:261:36:077:4424:19
7:50
#11831
Half
13.11 mi12:37:371:41:187:445:11
7:36
#11778
25K
15.53 mi12:57:142:00:557:4719:37
8:05
#12052
30K
18.64 mi13:23:052:26:467:5225:51
8:19
#12242
20M
20.00 mi13:34:312:38:127:5511:26
8:25
#12299
21M
21.00 mi13:43:412:47:227:589:10
9:10
#12407
35K
21.75 mi13:49:422:53:237:586:01
8:03
#12416
23M
23.00 mi14:00:083:03:498:0010:26
8:20
#12387
24M
24.00 mi14:08:193:12:008:008:11
8:11
#12379
40K
24.85 mi14:15:313:19:128:017:12
8:25
#12409
25.2M
25.20 mi14:18:363:22:178:023:05
8:56
#12398
Finish
26.22 mi14:26:553:30:368:028:19
8:10
#12431
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi126853272327211804(Top 44%)2798(Top 24%)2798(Top 232%)
10K6.21 mi3.10 mi11905+7802820+4522820+45211203(Top 42%)2435(Top 21%)2435(Top 202%)
15K9.32 mi3.11 mi11820+852794+262794+2611804(Top 44%)2798(Top 24%)2798(Top 232%)
20K12.43 mi3.11 mi11831-112817-232817-2311980(Top 45%)2963(Top 26%)2963(Top 245%)
Half13.11 mi0.68 mi11778+532787+302787+3011096(Top 42%)2438(Top 21%)2438(Top 202%)
25K15.53 mi2.42 mi12052-2742971-1842971-18413445(Top 51%)3884(Top 34%)3884(Top 322%)
30K18.64 mi3.11 mi12242-1903121-1503121-15013146(Top 49%)3834(Top 34%)3834(Top 318%)
20M20.00 mi1.36 mi12299-573160-393160-3913102(Top 49%)3909(Top 34%)3909(Top 324%)
21M21.00 mi1.00 mi12407-1083235-753235-7514308(Top 54%)4656(Top 41%)4656(Top 386%)
35K21.75 mi0.75 mi12416-93268-333268-3312454(Top 47%)3673(Top 32%)3673(Top 304%)
23M23.00 mi1.25 mi12387+293272-43272-412146(Top 46%)3596(Top 31%)3596(Top 298%)
24M24.00 mi1.00 mi12379+83284-123284-1212498(Top 47%)3853(Top 34%)3853(Top 319%)
40K24.85 mi0.85 mi12409-303317-333317-3312855(Top 48%)4128(Top 36%)4128(Top 342%)
25.2M25.20 mi0.35 mi12398+113325-83325-812218(Top 46%)3831(Top 34%)3831(Top 317%)
Finish26.22 mi1.02 mi12431-333366-413366-4113188(Top 50%)4297(Top 38%)4297(Top 356%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21story building
+97ft-345ft

Overall

11804

Females

2798

F50-54

2798

5K→10K

3.1 - 6.2 mi

Top 42%
×5story building
+79ft-138ft

Overall

11203

Females

2435

F50-54

2435

10K→15K

6.2 - 9.3 mi

Top 44%
×3story building
+67ft-78ft

Overall

11804

Females

2798

F50-54

2798

15K→20K

9.3 - 12.4 mi

Top 45%
×5story building
+106ft-86ft

Overall

11980

Females

2963

F50-54

2963

20K→Half

12.4 - 13.1 mi

Top 42%
×2story building
+19ft-37ft

Overall

11096

Females

2438

F50-54

2438

Half→25K

13.1 - 15.5 mi

Top 51%
×4story building
+66ft-88ft

Overall

13445

Females

3884

F50-54

3884

25K→30K

15.5 - 18.6 mi

Top 49%
×9story building
+181ft-148ft

Overall

13146

Females

3834

F50-54

3834

30K→20M

18.6 - 20.0 mi

Top 49%
×5story building
+64ft-50ft

Overall

13102

Females

3909

F50-54

3909

20M→21M

20.0 - 21.0 mi

Top 54%
×8story building
+106ft-24ft

Overall

14308

Females

4656

F50-54

4656

21M→35K

21.0 - 21.8 mi

Top 47%
×7story building
+17ft-86ft

Overall

12454

Females

3673

F50-54

3673

35K→23M

21.8 - 23.0 mi

Top 46%
×5story building
+23ft-63ft

Overall

12146

Females

3596

F50-54

3596

23M→24M

23.0 - 24.0 mi

Top 47%
×6story building
+12ft-82ft

Overall

12498

Females

3853

F50-54

3853

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

12855

Females

4128

F50-54

4128

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

12218

Females

3831

F50-54

3831

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2story building
+22ft-21ft

Overall

13188

Females

4297

F50-54

4297

Passing Analysis

Category:
Athletes Passed
2023
Passed By
1769
Net Change
+254
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12685
5K → 10K86282+780#12685#11905
10K → 15K235150+85#11905#11820
15K → 20K162173-11#11820#11831
20K → Half6411+53#11831#11778
Half → 25K60334-274#11778#12052
25K → 30K145335-190#12052#12242
30K → 20M79136-57#12242#12299
20M → 21M62170-108#12299#12407
21M → 35K5059-9#12407#12416
35K → 23M9869+29#12416#12387
23M → 24M6557+8#12387#12379
24M → 40K4979-30#12379#12409
40K → 25.2M3625+11#12409#12398
25.2M → Finish5689-33#12398#12431
TOTALS20231769+254
📊

Passing Visuals

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