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BOSTON MARATHON 2023

Michelle Krok

CA

Bib: 23414 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F55-59)
#0 / 815
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
9:50/mi
30:34
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
10:11/mi
1:02:13
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
10:29/mi
1:34:46
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
10:39/mi
2:07:50
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
10:27/mi
2:14:58
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
11:13/mi
2:42:09
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
11:23/mi
3:17:30
↑ 181↓ 1480.2%
138 ft elev
20M
11:43/mi
3:33:25
↑ 64↓ 500.2%
148 ft elev
21M
13:55/mi
3:47:20
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
11:06/mi
3:55:38
↑ 17↓ 861.7%
156 ft elev
23M
11:51/mi
4:10:28
↑ 23↓ 630.6%
116 ft elev
24M
11:41/mi
4:22:09
↓ 821.3%
34 ft elev
40K· 24.85 mi
12:17/mi
4:32:39
↓ 200.3%
20 ft elev
25.2M
12:46/mi
4:37:03
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
11:53/mi
4:49:10
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:14:58
Pace10:18 /mi
2nd Half
Distance13.11 mi
Time2:34:12
Pace11:46 /mi
📊Positive Split: 14.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:25:4830:349:5030:34
9:50
-
10K
6.21 mi11:57:271:02:1310:0131:39
10:11
+0:21
15K
9.32 mi12:30:001:34:4610:1032:33
10:29
+0:18
20K
12.43 mi13:03:042:07:5010:1733:04
10:39
+0:10
Half
13.11 mi13:10:122:14:5810:187:08
10:27
-0:12
25K
15.53 mi13:37:232:42:0910:2627:11
11:13
+0:46
30K
18.64 mi14:12:443:17:3010:3635:21
11:23
+0:10
20M
20.00 mi14:28:393:33:2510:4015:55
11:43
+0:20
21M
21.00 mi14:42:343:47:2010:5013:55
13:55
+2:12
35K
21.75 mi14:50:523:55:3810:508:18
11:06
-2:49
23M
23.00 mi15:05:424:10:2810:5314:50
11:51
+0:45
24M
24.00 mi15:17:234:22:0910:5511:41
11:41
-0:10
40K
24.85 mi15:27:534:32:3910:5810:30
12:17
+0:36
25.2M
25.20 mi15:32:174:37:0311:004:24
12:46
+0:29
Finish
26.22 mi15:44:244:49:1011:0212:07
11:53
-0:53

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

9:50 /mi

Average Pace

11:02 /mi

Slowest Pace

13:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:14:58

47% of race

Time at Steady Pace

2:05:23

43% of race

Time at Slower Pace

28:49

10% of race

Average Pace: 11:02 /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 mi11:25:4830:349:5030:34
9:50
#23025
10K
6.21 mi11:57:271:02:1310:0131:39
10:11
#23652
15K
9.32 mi12:30:001:34:4610:1032:33
10:29
#23938
20K
12.43 mi13:03:042:07:5010:1733:04
10:39
#23994
Half
13.11 mi13:10:122:14:5810:187:08
10:27
#23988
25K
15.53 mi13:37:232:42:0910:2627:11
11:13
#24057
30K
18.64 mi14:12:443:17:3010:3635:21
11:23
#23986
20M
20.00 mi14:28:393:33:2510:4015:55
11:43
#23983
21M
21.00 mi14:42:343:47:2010:5013:55
13:55
#24073
35K
21.75 mi14:50:523:55:3810:508:18
11:06
#24063
23M
23.00 mi15:05:424:10:2810:5314:50
11:51
#24045
24M
24.00 mi15:17:234:22:0910:5511:41
11:41
#24056
40K
24.85 mi15:27:534:32:3910:5810:30
12:17
#24063
25.2M
25.20 mi15:32:174:37:0311:004:24
12:46
#24063
Finish
26.22 mi15:44:244:49:1011:0212:07
11:53
#24123
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi230259406940624415(Top 92%)10128(Top 89%)10128(Top 1243%)
10K6.21 mi3.10 mi23652-6279702-2969702-29624106(Top 91%)9948(Top 87%)9948(Top 1221%)
15K9.32 mi3.11 mi23938-2869857-1559857-15524415(Top 92%)10128(Top 89%)10128(Top 1243%)
20K12.43 mi3.11 mi23994-569886-299886-2924093(Top 91%)9966(Top 87%)9966(Top 1223%)
Half13.11 mi0.68 mi23988+69889-39889-324145(Top 91%)9997(Top 88%)9997(Top 1227%)
25K15.53 mi2.42 mi24057-699936-479936-4724293(Top 91%)10112(Top 89%)10112(Top 1241%)
30K18.64 mi3.11 mi23986+719908+289908+2823692(Top 89%)9832(Top 86%)9832(Top 1206%)
20M20.00 mi1.36 mi23983+39915-79915-723835(Top 90%)9983(Top 87%)9983(Top 1225%)
21M21.00 mi1.00 mi24073-909985-709985-7024961(Top 94%)10591(Top 93%)10591(Top 1300%)
35K21.75 mi0.75 mi24063+109984+19984+123477(Top 88%)9861(Top 86%)9861(Top 1210%)
23M23.00 mi1.25 mi24045+189985-19985-123791(Top 89%)9997(Top 88%)9997(Top 1227%)
24M24.00 mi1.00 mi24056-119999-149999-1424114(Top 91%)10221(Top 89%)10221(Top 1254%)
40K24.85 mi0.85 mi24063-710011-1210011-1224209(Top 91%)10286(Top 90%)10286(Top 1262%)
25.2M25.20 mi0.35 mi2406310013-210013-223679(Top 89%)10025(Top 88%)10025(Top 1230%)
Finish26.22 mi1.02 mi24123-6010056-4310056-4325138(Top 94%)10733(Top 94%)10733(Top 1317%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 92%
×21story building
+97ft-345ft

Overall

24415

Females

10128

F55-59

10128

5K→10K

3.1 - 6.2 mi

Top 91%
×5story building
+79ft-138ft

Overall

24106

Females

9948

F55-59

9948

10K→15K

6.2 - 9.3 mi

Top 92%
×3story building
+67ft-78ft

Overall

24415

Females

10128

F55-59

10128

15K→20K

9.3 - 12.4 mi

Top 91%
×5story building
+106ft-86ft

Overall

24093

Females

9966

F55-59

9966

20K→Half

12.4 - 13.1 mi

Top 91%
×2story building
+19ft-37ft

Overall

24145

Females

9997

F55-59

9997

Half→25K

13.1 - 15.5 mi

Top 91%
×4story building
+66ft-88ft

Overall

24293

Females

10112

F55-59

10112

25K→30K

15.5 - 18.6 mi

Top 89%
×9story building
+181ft-148ft

Overall

23692

Females

9832

F55-59

9832

30K→20M

18.6 - 20.0 mi

Top 90%
×5story building
+64ft-50ft

Overall

23835

Females

9983

F55-59

9983

20M→21M

20.0 - 21.0 mi

Top 94%
×8story building
+106ft-24ft

Overall

24961

Females

10591

F55-59

10591

21M→35K

21.0 - 21.8 mi

Top 88%
×7story building
+17ft-86ft

Overall

23477

Females

9861

F55-59

9861

35K→23M

21.8 - 23.0 mi

Top 89%
×5story building
+23ft-63ft

Overall

23791

Females

9997

F55-59

9997

23M→24M

23.0 - 24.0 mi

Top 91%
×6story building
+12ft-82ft

Overall

24114

Females

10221

F55-59

10221

24M→40K

24.0 - 24.9 mi

Top 91%
×1story
+6ft-20ft

Overall

24209

Females

10286

F55-59

10286

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1story
+13ft-16ft

Overall

23679

Females

10025

F55-59

10025

25.2M→Finish

25.2 - 26.2 mi

Top 94%
×2story building
+22ft-21ft

Overall

25138

Females

10733

F55-59

10733

Passing Analysis

Category:
Athletes Passed
600
Passed By
1698
Net Change
-1098
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23025
5K → 10K40667-627#23025#23652
10K → 15K39325-286#23652#23938
15K → 20K92148-56#23938#23994
20K → Half2620+6#23994#23988
Half → 25K68137-69#23988#24057
25K → 30K13261+71#24057#23986
30K → 20M5047+3#23986#23983
20M → 21M10100-90#23983#24073
21M → 35K3020+10#24073#24063
35K → 23M4628+18#24063#24045
23M → 24M2334-11#24045#24056
24M → 40K2532-7#24056#24063
40K → 25.2M660#24063#24063
25.2M → Finish1373-60#24063#24123
TOTALS6001698-1098
📊

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