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BOSTON MARATHON 2023

Kristin Clark

Bib: 20386•F

MO

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
26:48
Rank: #18404
Start → 5K
26:48 | 8:38/mi
10K· 6.21 mi
53:22
Rank: #18470 (-66)
5K → 10K
26:34 | 8:33/mi
15K· 9.32 mi
1:20:05
Rank: #18443 (+27)
10K → 15K
26:43 | 8:36/mi
20K· 12.43 mi
1:47:20
Rank: #18432 (+11)
15K → 20K
27:15 | 8:46/mi
Half· 13.11 mi
1:53:15
Rank: #18443 (-11)
20K → Half
5:55 | 8:40/mi
25K· 15.53 mi
2:15:05
Rank: #18548 (-105)
Half → 25K
21:50 | 9:00/mi
30K· 18.64 mi
2:46:28
Rank: #19257 (-709)
25K → 30K
31:23 | 10:06/mi
20M
2:59:39
Rank: #19281 (-24)
30K → 20M
13:11 | 9:42/mi
21M
3:11:24
Rank: #19563 (-282)
20M → 21M
11:45 | 11:45/mi
35K· 21.75 mi
3:17:58
Rank: #19480 (+83)
21M → 35K
6:34 | 8:47/mi
23M
3:29:38
Rank: #19369 (+111)
35K → 23M
11:40 | 9:19/mi
24M
3:38:30
Rank: #19258 (+111)
23M → 24M
8:52 | 8:52/mi
40K· 24.85 mi
3:45:59
Rank: #19105 (+153)
24M → 40K
7:29 | 8:45/mi
25.2M
3:49:08
Rank: #19022 (+83)
40K → 25.2M
3:09 | 9:08/mi
Finish· 26.22 mi
3:57:45
Rank: #18897 (+125)
25.2M → Finish
8:37 | 8:27/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:15
Pace8:38 /mi
2nd Half
Distance13.11 mi
Time2:04:30
Pace9:30 /mi
📊Positive Split: 9.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:5426:488:3826:48
8:38
-
10K
6.21 mi11:47:2853:228:3526:34
8:33
-0:05
15K
9.32 mi12:14:111:20:058:3626:43
8:36
+0:03
20K
12.43 mi12:41:261:47:208:3827:15
8:46
+0:10
Half
13.11 mi12:47:211:53:158:385:55
8:40
-0:06
25K
15.53 mi13:09:112:15:058:4221:50
9:00
+0:20
30K
18.64 mi13:40:342:46:288:5631:23
10:06
+1:06
20M
20.00 mi13:53:452:59:398:5913:11
9:42
-0:24
21M
21.00 mi14:05:303:11:249:0711:45
11:45
+2:03
35K
21.75 mi14:12:043:17:589:066:34
8:47
-2:58
23M
23.00 mi14:23:443:29:389:0711:40
9:19
+0:32
24M
24.00 mi14:32:363:38:309:068:52
8:52
-0:27
40K
24.85 mi14:40:053:45:599:067:29
8:45
-0:07
25.2M
25.20 mi14:43:143:49:089:063:09
9:08
+0:23
Finish
26.22 mi14:51:513:57:459:048:37
8:27
-0:41

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

8:27 /mi

Average Pace

9:04 /mi

Slowest Pace

11:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:49:46

71% of race

Time at Slower Pace

1:07:59

29% of race

Average Pace: 9:04 /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 mi11:20:5426:488:3826:48
8:38
#18404
10K
6.21 mi11:47:2853:228:3526:34
8:33
#18470
15K
9.32 mi12:14:111:20:058:3626:43
8:36
#18443
20K
12.43 mi12:41:261:47:208:3827:15
8:46
#18432
Half
13.11 mi12:47:211:53:158:385:55
8:40
#18443
25K
15.53 mi13:09:112:15:058:4221:50
9:00
#18548
30K
18.64 mi13:40:342:46:288:5631:23
10:06
#19257
20M
20.00 mi13:53:452:59:398:5913:11
9:42
#19281
21M
21.00 mi14:05:303:11:249:0711:45
11:45
#19563
35K
21.75 mi14:12:043:17:589:066:34
8:47
#19480
23M
23.00 mi14:23:443:29:389:0711:40
9:19
#19369
24M
24.00 mi14:32:363:38:309:068:52
8:52
#19258
40K
24.85 mi14:40:053:45:599:067:29
8:45
#19105
25.2M
25.20 mi14:43:143:49:089:063:09
9:08
#19022
Finish
26.22 mi14:51:513:57:459:048:37
8:27
#18897
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi184046816681618456(Top 69%)6771(Top 59%)6771(Top 373%)
10K6.21 mi3.10 mi18470-666810+66810+618581(Top 70%)6821(Top 60%)6821(Top 375%)
15K9.32 mi3.11 mi18443+276777+336777+3318456(Top 69%)6771(Top 59%)6771(Top 373%)
20K12.43 mi3.11 mi18432+116769+86769+818526(Top 70%)6810(Top 60%)6810(Top 375%)
Half13.11 mi0.68 mi18443-116771-26771-218828(Top 71%)6985(Top 61%)6985(Top 384%)
25K15.53 mi2.42 mi18548-1056859-886859-8818988(Top 71%)7124(Top 62%)7124(Top 392%)
30K18.64 mi3.11 mi19257-7097290-4317290-43121291(Top 80%)8511(Top 75%)8511(Top 468%)
20M20.00 mi1.36 mi19281-247321-317321-3119566(Top 73%)7614(Top 67%)7614(Top 419%)
21M21.00 mi1.00 mi19563-2827495-1747495-17422324(Top 84%)9175(Top 80%)9175(Top 505%)
35K21.75 mi0.75 mi19480+837450+457450+4516873(Top 63%)6217(Top 54%)6217(Top 342%)
23M23.00 mi1.25 mi19369+1117389+617389+6117626(Top 66%)6650(Top 58%)6650(Top 366%)
24M24.00 mi1.00 mi19258+1117339+507339+5016631(Top 62%)6161(Top 54%)6161(Top 339%)
40K24.85 mi0.85 mi19105+1537261+787261+7814880(Top 56%)5242(Top 46%)5242(Top 288%)
25.2M25.20 mi0.35 mi19022+837215+467215+4613405(Top 50%)4476(Top 39%)4476(Top 246%)
Finish26.22 mi1.02 mi18897+1257149+667149+6615177(Top 57%)5366(Top 47%)5366(Top 295%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21stories
+97ft-345ft

Overall

18456

Females

6771

F45-49

6771

5K→10K

3.1 - 6.2 mi

Top 70%
×5stories
+79ft-138ft

Overall

18581

Females

6821

F45-49

6821

10K→15K

6.2 - 9.3 mi

Top 69%
×3stories
+67ft-78ft

Overall

18456

Females

6771

F45-49

6771

15K→20K

9.3 - 12.4 mi

Top 70%
×5stories
+106ft-86ft

Overall

18526

Females

6810

F45-49

6810

20K→Half

12.4 - 13.1 mi

Top 71%
×2stories
+19ft-37ft

Overall

18828

Females

6985

F45-49

6985

Half→25K

13.1 - 15.5 mi

Top 71%
×4stories
+66ft-88ft

Overall

18988

Females

7124

F45-49

7124

25K→30K

15.5 - 18.6 mi

Top 80%
×9stories
+181ft-148ft

Overall

21291

Females

8511

F45-49

8511

30K→20M

18.6 - 20.0 mi

Top 73%
×5stories
+64ft-50ft

Overall

19566

Females

7614

F45-49

7614

20M→21M

20.0 - 21.0 mi

Top 84%
×8stories
+106ft-24ft

Overall

22324

Females

9175

F45-49

9175

21M→35K

21.0 - 21.8 mi

Top 63%
×7stories
+17ft-86ft

Overall

16873

Females

6217

F45-49

6217

35K→23M

21.8 - 23.0 mi

Top 66%
×5stories
+23ft-63ft

Overall

17626

Females

6650

F45-49

6650

23M→24M

23.0 - 24.0 mi

Top 62%
×6stories
+12ft-82ft

Overall

16631

Females

6161

F45-49

6161

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

14880

Females

5242

F45-49

5242

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

13405

Females

4476

F45-49

4476

25.2M→Finish

25.2 - 26.2 mi

Top 57%
×2stories
+22ft-21ft

Overall

15177

Females

5366

F45-49

5366

Passing Analysis

Category:
Athletes Passed
1642
Passed By
2135
Net Change
-493
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18404
5K → 10K292358-66#18404#18470
10K → 15K194167+27#18470#18443
15K → 20K168157+11#18443#18432
20K → Half3243-11#18432#18443
Half → 25K94199-105#18443#18548
25K → 30K39748-709#18548#19257
30K → 20M76100-24#19257#19281
20M → 21M26308-282#19281#19563
21M → 35K9411+83#19563#19480
35K → 23M13524+111#19480#19369
23M → 24M1209+111#19369#19258
24M → 40K1585+153#19258#19105
40K → 25.2M841+83#19105#19022
25.2M → Finish1305+125#19022#18897
TOTALS16422135-493
📊

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