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BOSTON MARATHON 2023

Michiko Clarke

Bib: 15025•F

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 40%
Gender (Female)
#0 / 11423
Top 22%
Masters (Masters Women)
#0 / 6539
Top 10%
Division (F40-44)
#0 / 1878
Top 20%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:31
Rank: #10266
Start → 5K
23:31 | 7:34/mi
10K· 6.21 mi
47:04
Rank: #10687 (-421)
5K → 10K
23:33 | 7:35/mi
15K· 9.32 mi
1:10:26
Rank: #10562 (+125)
10K → 15K
23:22 | 7:31/mi
20K· 12.43 mi
1:34:05
Rank: #10446 (+116)
15K → 20K
23:39 | 7:37/mi
Half· 13.11 mi
1:39:14
Rank: #10456 (-10)
20K → Half
5:09 | 7:33/mi
25K· 15.53 mi
1:57:42
Rank: #10288 (+168)
Half → 25K
18:28 | 7:37/mi
30K· 18.64 mi
2:22:06
Rank: #10155 (+133)
25K → 30K
24:24 | 7:51/mi
20M
2:32:59
Rank: #10160 (-5)
30K → 20M
10:53 | 8:01/mi
21M
2:41:31
Rank: #10149 (+11)
20M → 21M
8:32 | 8:32/mi
35K· 21.75 mi
2:47:00
Rank: #10014 (+135)
21M → 35K
5:29 | 7:20/mi
23M
2:57:25
Rank: #10131 (-117)
35K → 23M
10:25 | 8:19/mi
24M
3:05:37
Rank: #10220 (-89)
23M → 24M
8:12 | 8:12/mi
40K· 24.85 mi
3:13:06
Rank: #10393 (-173)
24M → 40K
7:29 | 8:45/mi
25.2M
3:16:26
Rank: #10496 (-103)
40K → 25.2M
3:20 | 9:40/mi
Finish· 26.22 mi
3:25:16
Rank: #10748 (-252)
25.2M → Finish
8:50 | 8:40/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:14
Pace7:34 /mi
2nd Half
Distance13.11 mi
Time1:46:02
Pace8:05 /mi
📊Positive Split: 6.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:5223:317:3423:31
7:34
-
10K
6.21 mi11:18:2547:047:3423:33
7:35
+0:01
15K
9.32 mi11:41:471:10:267:3323:22
7:31
-0:04
20K
12.43 mi12:05:261:34:057:3423:39
7:37
+0:06
Half
13.11 mi12:10:351:39:147:345:09
7:33
-0:04
25K
15.53 mi12:29:031:57:427:3518:28
7:37
+0:04
30K
18.64 mi12:53:272:22:067:3724:24
7:51
+0:14
20M
20.00 mi13:04:202:32:597:3910:53
8:01
+0:10
21M
21.00 mi13:12:522:41:317:418:32
8:32
+0:31
35K
21.75 mi13:18:212:47:007:415:29
7:20
-1:12
23M
23.00 mi13:28:462:57:257:4310:25
8:19
+0:59
24M
24.00 mi13:36:583:05:377:448:12
8:12
-0:07
40K
24.85 mi13:44:273:13:067:467:29
8:45
+0:33
25.2M
25.20 mi13:47:473:16:267:483:20
9:40
+0:55
Finish
26.22 mi13:56:373:25:167:508:50
8:40
-1:00

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

7:20 /mi

Average Pace

7:50 /mi

Slowest Pace

9:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

28:51

14% of race

Time at Steady Pace

2:09:37

63% of race

Time at Slower Pace

46:48

23% of race

Average Pace: 7:50 /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 mi10:54:5223:317:3423:31
7:34
#10266
10K
6.21 mi11:18:2547:047:3423:33
7:35
#10687
15K
9.32 mi11:41:471:10:267:3323:22
7:31
#10562
20K
12.43 mi12:05:261:34:057:3423:39
7:37
#10446
Half
13.11 mi12:10:351:39:147:345:09
7:33
#10456
25K
15.53 mi12:29:031:57:427:3518:28
7:37
#10288
30K
18.64 mi12:53:272:22:067:3724:24
7:51
#10155
20M
20.00 mi13:04:202:32:597:3910:53
8:01
#10160
21M
21.00 mi13:12:522:41:317:418:32
8:32
#10149
35K
21.75 mi13:18:212:47:007:415:29
7:20
#10014
23M
23.00 mi13:28:462:57:257:4310:25
8:19
#10131
24M
24.00 mi13:36:583:05:377:448:12
8:12
#10220
40K
24.85 mi13:44:273:13:067:467:29
8:45
#10393
25.2M
25.20 mi13:47:473:16:267:483:20
9:40
#10496
Finish
26.22 mi13:56:373:25:167:508:50
8:40
#10748
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi102661986198610363(Top 39%)2013(Top 18%)2013(Top 107%)
10K6.21 mi3.10 mi10687-4212168-1822168-18211152(Top 42%)2403(Top 21%)2403(Top 128%)
15K9.32 mi3.11 mi10562+1252098+702098+7010363(Top 39%)2013(Top 18%)2013(Top 107%)
20K12.43 mi3.11 mi10446+1162042+562042+5610192(Top 38%)2002(Top 18%)2002(Top 107%)
Half13.11 mi0.68 mi10456-102051-92051-910690(Top 40%)2228(Top 20%)2228(Top 119%)
25K15.53 mi2.42 mi10288+1681991+601991+609693(Top 36%)1872(Top 16%)1872(Top 100%)
30K18.64 mi3.11 mi10155+1331969+221969+229785(Top 37%)2062(Top 18%)2062(Top 110%)
20M20.00 mi1.36 mi10160-52006-372006-3710357(Top 39%)2403(Top 21%)2403(Top 128%)
21M21.00 mi1.00 mi10149+112017-112017-1110691(Top 40%)2717(Top 24%)2717(Top 145%)
35K21.75 mi0.75 mi10014+1351979+381979+387407(Top 28%)1282(Top 11%)1282(Top 68%)
23M23.00 mi1.25 mi10131-1172061-822061-8212044(Top 45%)3533(Top 31%)3533(Top 188%)
24M24.00 mi1.00 mi10220-892133-722133-7212604(Top 47%)3904(Top 34%)3904(Top 208%)
40K24.85 mi0.85 mi10393-1732252-1192252-11914823(Top 56%)5185(Top 45%)5185(Top 276%)
25.2M25.20 mi0.35 mi10496-1032316-642316-6415953(Top 60%)5817(Top 51%)5817(Top 310%)
Finish26.22 mi1.02 mi10748-2522470-1542470-15416332(Top 61%)6001(Top 53%)6001(Top 320%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×21stories
+97ft-345ft

Overall

10363

Females

2013

F40-44

2013

5K→10K

3.1 - 6.2 mi

Top 42%
×5stories
+79ft-138ft

Overall

11152

Females

2403

F40-44

2403

10K→15K

6.2 - 9.3 mi

Top 39%
×3stories
+67ft-78ft

Overall

10363

Females

2013

F40-44

2013

15K→20K

9.3 - 12.4 mi

Top 38%
×5stories
+106ft-86ft

Overall

10192

Females

2002

F40-44

2002

20K→Half

12.4 - 13.1 mi

Top 40%
×2stories
+19ft-37ft

Overall

10690

Females

2228

F40-44

2228

Half→25K

13.1 - 15.5 mi

Top 36%
×4stories
+66ft-88ft

Overall

9693

Females

1872

F40-44

1872

25K→30K

15.5 - 18.6 mi

Top 37%
×9stories
+181ft-148ft

Overall

9785

Females

2062

F40-44

2062

30K→20M

18.6 - 20.0 mi

Top 39%
×5stories
+64ft-50ft

Overall

10357

Females

2403

F40-44

2403

20M→21M

20.0 - 21.0 mi

Top 40%
×8stories
+106ft-24ft

Overall

10691

Females

2717

F40-44

2717

21M→35K

21.0 - 21.8 mi

Top 28%
×7stories
+17ft-86ft

Overall

7407

Females

1282

F40-44

1282

35K→23M

21.8 - 23.0 mi

Top 45%
×5stories
+23ft-63ft

Overall

12044

Females

3533

F40-44

3533

23M→24M

23.0 - 24.0 mi

Top 47%
×6stories
+12ft-82ft

Overall

12604

Females

3904

F40-44

3904

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

14823

Females

5185

F40-44

5185

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

15953

Females

5817

F40-44

5817

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2stories
+22ft-21ft

Overall

16332

Females

6001

F40-44

6001

Passing Analysis

Category:
Athletes Passed
1533*
Passed By
2013
Net Change
-482
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10266
5K → 10K142563-421#10266#10687
10K → 15K252127+125#10687#10562
15K → 20K20993+116#10562#10446
20K → Half2939-10#10446#10456
Half → 25K22052+168#10456#10288
25K → 30K221*88+133#10288#10155
30K → 20M76*81-5#10155#10160
20M → 21M9382+11#10160#10149
21M → 35K140*5+135#10149#10014
35K → 23M47163-117#10014#10131
23M → 24M41129-89#10131#10220
24M → 40K29202-173#10220#10393
40K → 25.2M10113-103#10393#10496
25.2M → Finish24276-252#10496#10748
TOTALS1533*2013-482

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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