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BOSTON MARATHON 2023

Erin Clarke

Bib: 21198•F

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F45-49)
#0 / 1817
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:40
Rank: #18139
Start → 5K
8:35/mi
26:40 split
10K· 6.21 mi
53:37
Rank: #18688 (-549)
5K → 10K
8:40/mi
26:57 split
15K· 9.32 mi
1:21:32
Rank: #19332 (-644)
10K → 15K
8:59/mi
27:55 split
20K· 12.43 mi
1:51:41
Rank: #20307 (-975)
15K → 20K
9:42/mi
30:09 split
Half· 13.11 mi
1:58:24
Rank: #20501 (-194)
20K → Half
9:51/mi
6:43 split
25K· 15.53 mi
2:22:40
Rank: #20874 (-373)
Half → 25K
10:01/mi
24:16 split
30K· 18.64 mi
2:55:52
Rank: #21277 (-403)
25K → 30K
10:41/mi
33:12 split
20M
3:10:14
Rank: #21318 (-41)
30K → 20M
10:34/mi
14:22 split
21M
3:21:17
Rank: #21300 (+18)
20M → 21M
11:03/mi
11:03 split
35K· 21.75 mi
3:29:05
Rank: #21331 (-31)
21M → 35K
10:26/mi
7:48 split
23M
3:42:04
Rank: #21312 (+19)
35K → 23M
10:22/mi
12:59 split
24M
3:52:20
Rank: #21310 (+2)
23M → 24M
10:16/mi
10:16 split
40K· 24.85 mi
4:01:12
Rank: #21292 (+18)
24M → 40K
10:22/mi
8:52 split
25.2M
4:05:11
Rank: #21290 (+2)
40K → 25.2M
11:33/mi
3:59 split
Finish· 26.22 mi
4:15:15
Rank: #21287 (+3)
25.2M → Finish
9:53/mi
10:04 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:58:24
Pace9:02 /mi
2nd Half
Distance13.11 mi
Time2:16:51
Pace10:26 /mi
📊Positive Split: 15.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:5426:408:3526:40
8:35
-
10K
6.21 mi11:46:5153:378:3826:57
8:40
+0:05
15K
9.32 mi12:14:461:21:328:4527:55
8:59
+0:19
20K
12.43 mi12:44:551:51:418:5930:09
9:42
+0:43
Half
13.11 mi12:51:381:58:249:026:43
9:51
+0:09
25K
15.53 mi13:15:542:22:409:1124:16
10:01
+0:10
30K
18.64 mi13:49:062:55:529:2633:12
10:41
+0:40
20M
20.00 mi14:03:283:10:149:3114:22
10:34
-0:07
21M
21.00 mi14:14:313:21:179:3511:03
11:03
+0:29
35K
21.75 mi14:22:193:29:059:377:48
10:26
-0:37
23M
23.00 mi14:35:183:42:049:3912:59
10:22
-0:04
24M
24.00 mi14:45:343:52:209:4110:16
10:16
-0:06
40K
24.85 mi14:54:264:01:129:428:52
10:22
+0:06
25.2M
25.20 mi14:58:254:05:119:443:59
11:33
+1:11
Finish
26.22 mi15:08:294:15:159:4510:04
9:53
-1:40

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

8:35 /mi

Average Pace

9:45 /mi

Slowest Pace

11:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:58:24

46% of race

Time at Steady Pace

1:28:37

35% of race

Time at Slower Pace

48:14

19% of race

Average Pace: 9:44 /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 mi11:19:5426:408:3526:40
8:35
#18139
10K
6.21 mi11:46:5153:378:3826:57
8:40
#18688
15K
9.32 mi12:14:461:21:328:4527:55
8:59
#19332
20K
12.43 mi12:44:551:51:418:5930:09
9:42
#20307
Half
13.11 mi12:51:381:58:249:026:43
9:51
#20501
25K
15.53 mi13:15:542:22:409:1124:16
10:01
#20874
30K
18.64 mi13:49:062:55:529:2633:12
10:41
#21277
20M
20.00 mi14:03:283:10:149:3114:22
10:34
#21318
21M
21.00 mi14:14:313:21:179:3511:03
11:03
#21300
35K
21.75 mi14:22:193:29:059:377:48
10:26
#21331
23M
23.00 mi14:35:183:42:049:3912:59
10:22
#21312
24M
24.00 mi14:45:343:52:209:4110:16
10:16
#21310
40K
24.85 mi14:54:264:01:129:428:52
10:22
#21292
25.2M
25.20 mi14:58:254:05:119:443:59
11:33
#21290
Finish
26.22 mi15:08:294:15:159:4510:04
9:53
#21287
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi181396646664620447(Top 77%)7929(Top 69%)7929(Top 436%)
10K6.21 mi3.10 mi18688-5496940-2946940-29419295(Top 72%)7266(Top 64%)7266(Top 400%)
15K9.32 mi3.11 mi19332-6447338-3987338-39820447(Top 77%)7929(Top 69%)7929(Top 436%)
20K12.43 mi3.11 mi20307-9757892-5547892-55422181(Top 83%)8899(Top 78%)8899(Top 490%)
Half13.11 mi0.68 mi20501-1947994-1027994-10222978(Top 86%)9337(Top 82%)9337(Top 514%)
25K15.53 mi2.42 mi20874-3738191-1978191-19722236(Top 84%)8965(Top 78%)8965(Top 493%)
30K18.64 mi3.11 mi21277-4038438-2478438-24722585(Top 85%)9231(Top 81%)9231(Top 508%)
20M20.00 mi1.36 mi21318-418475-378475-3721902(Top 82%)8923(Top 78%)8923(Top 491%)
21M21.00 mi1.00 mi21300+188479-48479-420939(Top 79%)8426(Top 74%)8426(Top 464%)
35K21.75 mi0.75 mi21331-318496-178496-1722241(Top 84%)9182(Top 80%)9182(Top 505%)
23M23.00 mi1.25 mi21312+198503-78503-721006(Top 79%)8528(Top 75%)8528(Top 469%)
24M24.00 mi1.00 mi21310+28515-128515-1221489(Top 81%)8839(Top 77%)8839(Top 486%)
40K24.85 mi0.85 mi21292+188512+38512+320928(Top 79%)8559(Top 75%)8559(Top 471%)
25.2M25.20 mi0.35 mi21290+28512851221689(Top 81%)8956(Top 78%)8956(Top 493%)
Finish26.22 mi1.02 mi21287+38519-78519-721423(Top 80%)8798(Top 77%)8798(Top 484%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21story building
+97ft-345ft

Overall

20447

Females

7929

F45-49

7929

5K→10K

3.1 - 6.2 mi

Top 72%
×5story building
+79ft-138ft

Overall

19295

Females

7266

F45-49

7266

10K→15K

6.2 - 9.3 mi

Top 77%
×3story building
+67ft-78ft

Overall

20447

Females

7929

F45-49

7929

15K→20K

9.3 - 12.4 mi

Top 83%
×5story building
+106ft-86ft

Overall

22181

Females

8899

F45-49

8899

20K→Half

12.4 - 13.1 mi

Top 86%
×2story building
+19ft-37ft

Overall

22978

Females

9337

F45-49

9337

Half→25K

13.1 - 15.5 mi

Top 84%
×4story building
+66ft-88ft

Overall

22236

Females

8965

F45-49

8965

25K→30K

15.5 - 18.6 mi

Top 85%
×9story building
+181ft-148ft

Overall

22585

Females

9231

F45-49

9231

30K→20M

18.6 - 20.0 mi

Top 82%
×5story building
+64ft-50ft

Overall

21902

Females

8923

F45-49

8923

20M→21M

20.0 - 21.0 mi

Top 79%
×8story building
+106ft-24ft

Overall

20939

Females

8426

F45-49

8426

21M→35K

21.0 - 21.8 mi

Top 84%
×7story building
+17ft-86ft

Overall

22241

Females

9182

F45-49

9182

35K→23M

21.8 - 23.0 mi

Top 79%
×5story building
+23ft-63ft

Overall

21006

Females

8528

F45-49

8528

23M→24M

23.0 - 24.0 mi

Top 81%
×6story building
+12ft-82ft

Overall

21489

Females

8839

F45-49

8839

24M→40K

24.0 - 24.9 mi

Top 79%
×1story
+6ft-20ft

Overall

20928

Females

8559

F45-49

8559

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

21689

Females

8956

F45-49

8956

25.2M→Finish

25.2 - 26.2 mi

Top 80%
×2story building
+22ft-21ft

Overall

21423

Females

8798

F45-49

8798

Passing Analysis

Category:
Athletes Passed
651
Passed By
3799
Net Change
-3148
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18139
5K → 10K122671-549#18139#18688
10K → 15K37681-644#18688#19332
15K → 20K291004-975#19332#20307
20K → Half3197-194#20307#20501
Half → 25K26399-373#20501#20874
25K → 30K45448-403#20874#21277
30K → 20M61102-41#21277#21318
20M → 21M7759+18#21318#21300
21M → 35K1950-31#21300#21331
35K → 23M7758+19#21331#21312
23M → 24M4745+2#21312#21310
24M → 40K4729+18#21310#21292
40K → 25.2M2624+2#21292#21290
25.2M → Finish3532+3#21290#21287
TOTALS6513799-3148
📊

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