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BOSTON MARATHON 2023

Michelle Kaminski

Bib: 31804•F

MA

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

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
9:36/mi
29:49
↑ 97↓ 3451.5%
10K· 6.21 mi
9:35/mi
59:36
↑ 79↓ 1380.4%
15K· 9.32 mi
9:22/mi
1:28:41
↑ 67↓ 78
20K· 12.43 mi
9:41/mi
1:58:46
↑ 106↓ 860.1%
Half· 13.11 mi
9:24/mi
2:05:11
↑ 19↓ 370.5%
25K· 15.53 mi
10:34/mi
2:30:49
↑ 66↓ 880.2%
30K· 18.64 mi
11:02/mi
3:05:07
↑ 181↓ 1480.2%
20M
12:21/mi
3:21:54
↑ 64↓ 500.2%
21M
11:42/mi
3:33:36
↑ 106↓ 241.6%
35K· 21.75 mi
11:15/mi
3:42:01
↑ 17↓ 861.7%
23M
12:28/mi
3:57:37
↑ 23↓ 630.6%
24M
11:56/mi
4:09:33
↓ 821.3%
40K· 24.85 mi
13:06/mi
4:20:45
↓ 200.3%
25.2M
14:07/mi
4:25:37
↑ 13↓ 160.2%
Finish· 26.22 mi
11:17/mi
4:37:07
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:05:11
Pace9:33 /mi
2nd Half
Distance13.11 mi
Time2:31:56
Pace11:35 /mi
📊Positive Split: 21.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:4629:499:3629:49
9:36
-
10K
6.21 mi12:23:3359:369:3629:47
9:35
-0:01
15K
9.32 mi12:52:381:28:419:3129:05
9:22
-0:13
20K
12.43 mi13:22:431:58:469:3330:05
9:41
+0:19
Half
13.11 mi13:29:082:05:119:336:25
9:24
-0:17
25K
15.53 mi13:54:462:30:499:4325:38
10:34
+1:10
30K
18.64 mi14:29:043:05:079:5634:18
11:02
+0:28
20M
20.00 mi14:45:513:21:5410:0616:47
12:21
+1:19
21M
21.00 mi14:57:333:33:3610:1011:42
11:42
-0:39
35K
21.75 mi15:05:583:42:0110:138:25
11:15
-0:27
23M
23.00 mi15:21:343:57:3710:2015:36
12:28
+1:13
24M
24.00 mi15:33:304:09:3310:2411:56
11:56
-0:32
40K
24.85 mi15:44:424:20:4510:2911:12
13:06
+1:10
25.2M
25.20 mi15:49:344:25:3710:324:52
14:07
+1:01
Finish
26.22 mi16:01:044:37:0710:3511:30
11:17
-2:50

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

9:22 /mi

Average Pace

10:35 /mi

Slowest Pace

14:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:05:11

45% of race

Time at Steady Pace

1:43:29

37% of race

Time at Slower Pace

48:27

17% of race

Average Pace: 10:34 /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 mi11:53:4629:499:3629:49
9:36
#22370
10K
6.21 mi12:23:3359:369:3629:47
9:35
#22587
15K
9.32 mi12:52:381:28:419:3129:05
9:22
#22363
20K
12.43 mi13:22:431:58:469:3330:05
9:41
#22280
Half
13.11 mi13:29:082:05:119:336:25
9:24
#22250
25K
15.53 mi13:54:462:30:499:4325:38
10:34
#22499
30K
18.64 mi14:29:043:05:079:5634:18
11:02
#22637
20M
20.00 mi14:45:513:21:5410:0616:47
12:21
#22835
21M
21.00 mi14:57:333:33:3610:1011:42
11:42
#22817
35K
21.75 mi15:05:583:42:0110:138:25
11:15
#22865
23M
23.00 mi15:21:343:57:3710:2015:36
12:28
#22980
24M
24.00 mi15:33:304:09:3310:2411:56
11:56
#23068
40K
24.85 mi15:44:424:20:4510:2911:12
13:06
#23190
25.2M
25.20 mi15:49:344:25:3710:324:52
14:07
#23248
Finish
26.22 mi16:01:044:37:0710:3511:30
11:17
#23307
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi223709058905821850(Top 82%)8709(Top 76%)8709(Top 722%)
10K6.21 mi3.10 mi22587-2179143-859143-8522766(Top 86%)9219(Top 81%)9219(Top 764%)
15K9.32 mi3.11 mi22363+2249027+1169027+11621850(Top 82%)8709(Top 76%)8709(Top 722%)
20K12.43 mi3.11 mi22280+838974+538974+5322111(Top 83%)8866(Top 78%)8866(Top 735%)
Half13.11 mi0.68 mi22250+308959+158959+1521861(Top 82%)8722(Top 76%)8722(Top 723%)
25K15.53 mi2.42 mi22499-2499105-1469105-14623310(Top 88%)9562(Top 84%)9562(Top 792%)
30K18.64 mi3.11 mi22637-1389200-959200-9523153(Top 87%)9545(Top 84%)9545(Top 791%)
20M20.00 mi1.36 mi22835-1989311-1119311-11124592(Top 92%)10387(Top 91%)10387(Top 861%)
21M21.00 mi1.00 mi22817+189310+19310+122247(Top 84%)9140(Top 80%)9140(Top 757%)
35K21.75 mi0.75 mi22865-489346-369346-3623731(Top 89%)10003(Top 88%)10003(Top 829%)
23M23.00 mi1.25 mi22980-1159412-669412-6624535(Top 92%)10408(Top 91%)10408(Top 862%)
24M24.00 mi1.00 mi23068-889474-629474-6224434(Top 92%)10395(Top 91%)10395(Top 861%)
40K24.85 mi0.85 mi23190-1229540-669540-6625017(Top 94%)10685(Top 94%)10685(Top 885%)
25.2M25.20 mi0.35 mi23248-589571-319571-3125085(Top 94%)10736(Top 94%)10736(Top 889%)
Finish26.22 mi1.02 mi23307-599612-419612-4124415(Top 92%)10362(Top 91%)10362(Top 858%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21story building
+97ft-345ft

Overall

21850

Females

8709

F50-54

8709

5K→10K

3.1 - 6.2 mi

Top 86%
×5story building
+79ft-138ft

Overall

22766

Females

9219

F50-54

9219

10K→15K

6.2 - 9.3 mi

Top 82%
×3story building
+67ft-78ft

Overall

21850

Females

8709

F50-54

8709

15K→20K

9.3 - 12.4 mi

Top 83%
×5story building
+106ft-86ft

Overall

22111

Females

8866

F50-54

8866

20K→Half

12.4 - 13.1 mi

Top 82%
×2story building
+19ft-37ft

Overall

21861

Females

8722

F50-54

8722

Half→25K

13.1 - 15.5 mi

Top 88%
×4story building
+66ft-88ft

Overall

23310

Females

9562

F50-54

9562

25K→30K

15.5 - 18.6 mi

Top 87%
×9story building
+181ft-148ft

Overall

23153

Females

9545

F50-54

9545

30K→20M

18.6 - 20.0 mi

Top 92%
×5story building
+64ft-50ft

Overall

24592

Females

10387

F50-54

10387

20M→21M

20.0 - 21.0 mi

Top 84%
×8story building
+106ft-24ft

Overall

22247

Females

9140

F50-54

9140

21M→35K

21.0 - 21.8 mi

Top 89%
×7story building
+17ft-86ft

Overall

23731

Females

10003

F50-54

10003

35K→23M

21.8 - 23.0 mi

Top 92%
×5story building
+23ft-63ft

Overall

24535

Females

10408

F50-54

10408

23M→24M

23.0 - 24.0 mi

Top 92%
×6story building
+12ft-82ft

Overall

24434

Females

10395

F50-54

10395

24M→40K

24.0 - 24.9 mi

Top 94%
×1story
+6ft-20ft

Overall

25017

Females

10685

F50-54

10685

40K→25.2M

24.9 - 25.2 mi

Top 94%
×1story
+13ft-16ft

Overall

25085

Females

10736

F50-54

10736

25.2M→Finish

25.2 - 26.2 mi

Top 92%
×2story building
+22ft-21ft

Overall

24415

Females

10362

F50-54

10362

Passing Analysis

Category:
Athletes Passed
913
Passed By
1850
Net Change
-937
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22370
5K → 10K140357-217#22370#22587
10K → 15K28056+224#22587#22363
15K → 20K17390+83#22363#22280
20K → Half377+30#22280#22250
Half → 25K43292-249#22250#22499
25K → 30K69207-138#22499#22637
30K → 20M22220-198#22637#22835
20M → 21M5840+18#22835#22817
21M → 35K1765-48#22817#22865
35K → 23M21136-115#22865#22980
23M → 24M21109-88#22980#23068
24M → 40K14136-122#23068#23190
40K → 25.2M563-58#23190#23248
25.2M → Finish1372-59#23248#23307
TOTALS9131850-937
📊

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