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BOSTON MARATHON 2023

Natalie Kaminski

Bib: 17172•F

IL

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 48%
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:17
Rank: #17283
Start → 5K
26:17 | 8:28/mi
10K· 6.21 mi
52:11
Rank: #17198 (+85)
5K → 10K
25:54 | 8:20/mi
15K· 9.32 mi
1:17:47
Rank: #16821 (+377)
10K → 15K
25:36 | 8:14/mi
20K· 12.43 mi
1:43:45
Rank: #16623 (+198)
15K → 20K
25:58 | 8:21/mi
Half· 13.11 mi
1:49:26
Rank: #16626 (-3)
20K → Half
5:41 | 8:20/mi
25K· 15.53 mi
2:10:03
Rank: #16554 (+72)
Half → 25K
20:37 | 8:30/mi
30K· 18.64 mi
2:37:13
Rank: #16379 (+175)
25K → 30K
27:10 | 8:45/mi
20M
2:49:21
Rank: #16328 (+51)
30K → 20M
12:08 | 8:56/mi
21M
2:58:40
Rank: #16246 (+82)
20M → 21M
9:19 | 9:19/mi
35K· 21.75 mi
3:05:19
Rank: #16287 (-41)
21M → 35K
6:39 | 8:53/mi
23M
3:16:28
Rank: #16209 (+78)
35K → 23M
11:09 | 8:54/mi
24M
3:25:12
Rank: #16181 (+28)
23M → 24M
8:44 | 8:44/mi
40K· 24.85 mi
3:32:44
Rank: #16128 (+53)
24M → 40K
7:32 | 8:49/mi
25.2M
3:35:57
Rank: #16100 (+28)
40K → 25.2M
3:13 | 9:20/mi
Finish· 26.22 mi
3:44:30
Rank: #16047 (+53)
25.2M → Finish
8:33 | 8:23/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:26
Pace8:21 /mi
2nd Half
Distance13.11 mi
Time1:55:04
Pace8:47 /mi
📊Positive Split: 5.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:3326:178:2826:17
8:28
-
10K
6.21 mi11:46:2752:118:2425:54
8:20
-0:08
15K
9.32 mi12:12:031:17:478:2125:36
8:14
-0:06
20K
12.43 mi12:38:011:43:458:2125:58
8:21
+0:07
Half
13.11 mi12:43:421:49:268:215:41
8:20
-0:01
25K
15.53 mi13:04:192:10:038:2220:37
8:30
+0:10
30K
18.64 mi13:31:292:37:138:2627:10
8:45
+0:15
20M
20.00 mi13:43:372:49:218:2812:08
8:56
+0:11
21M
21.00 mi13:52:562:58:408:309:19
9:19
+0:23
35K
21.75 mi13:59:353:05:198:316:39
8:53
-0:26
23M
23.00 mi14:10:443:16:288:3311:09
8:54
+0:01
24M
24.00 mi14:19:283:25:128:338:44
8:44
-0:10
40K
24.85 mi14:27:003:32:448:347:32
8:49
+0:05
25.2M
25.20 mi14:30:133:35:578:343:13
9:20
+0:31
Finish
26.22 mi14:38:463:44:308:348:33
8:23
-0:57

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

8:14 /mi

Average Pace

8:34 /mi

Slowest Pace

9:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:31:58

94% of race

Time at Steady Pace

12:32

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:34 /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 mi11:20:3326:178:2826:17
8:28
#17283
10K
6.21 mi11:46:2752:118:2425:54
8:20
#17198
15K
9.32 mi12:12:031:17:478:2125:36
8:14
#16821
20K
12.43 mi12:38:011:43:458:2125:58
8:21
#16623
Half
13.11 mi12:43:421:49:268:215:41
8:20
#16626
25K
15.53 mi13:04:192:10:038:2220:37
8:30
#16554
30K
18.64 mi13:31:292:37:138:2627:10
8:45
#16379
20M
20.00 mi13:43:372:49:218:2812:08
8:56
#16328
21M
21.00 mi13:52:562:58:408:309:19
9:19
#16246
35K
21.75 mi13:59:353:05:198:316:39
8:53
#16287
23M
23.00 mi14:10:443:16:288:3311:09
8:54
#16209
24M
24.00 mi14:19:283:25:128:338:44
8:44
#16181
40K
24.85 mi14:27:003:32:448:347:32
8:49
#16128
25.2M
25.20 mi14:30:133:35:578:343:13
9:20
#16100
Finish
26.22 mi14:38:463:44:308:348:33
8:23
#16047
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi172836115611516148(Top 61%)5381(Top 47%)5381(Top 110%)
10K6.21 mi3.10 mi17198+856054+616054+6117170(Top 64%)5978(Top 52%)5978(Top 122%)
15K9.32 mi3.11 mi16821+3775806+2485806+24816148(Top 61%)5381(Top 47%)5381(Top 110%)
20K12.43 mi3.11 mi16623+1985690+1165690+11615995(Top 60%)5342(Top 47%)5342(Top 109%)
Half13.11 mi0.68 mi16626-35702-125702-1216702(Top 63%)5713(Top 50%)5713(Top 117%)
25K15.53 mi2.42 mi16554+725669+335669+3316229(Top 61%)5576(Top 49%)5576(Top 114%)
30K18.64 mi3.11 mi16379+1755611+585611+5815757(Top 59%)5359(Top 47%)5359(Top 110%)
20M20.00 mi1.36 mi16328+515601+105601+1016172(Top 61%)5669(Top 50%)5669(Top 116%)
21M21.00 mi1.00 mi16246+825566+355566+3515105(Top 57%)5122(Top 45%)5122(Top 105%)
35K21.75 mi0.75 mi16287-415595-295595-2917399(Top 65%)6492(Top 57%)6492(Top 133%)
23M23.00 mi1.25 mi16209+785560+355560+3515582(Top 59%)5501(Top 48%)5501(Top 113%)
24M24.00 mi1.00 mi16181+285564-45564-415871(Top 60%)5736(Top 50%)5736(Top 117%)
40K24.85 mi0.85 mi16128+535547+175547+1715159(Top 57%)5389(Top 47%)5389(Top 110%)
25.2M25.20 mi0.35 mi16100+285530+175530+1714404(Top 54%)4974(Top 44%)4974(Top 102%)
Finish26.22 mi1.02 mi16047+535516+145516+1414708(Top 55%)5105(Top 45%)5105(Top 105%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21stories
+97ft-345ft

Overall

16148

Females

5381

F18-39

5381

5K→10K

3.1 - 6.2 mi

Top 64%
×5stories
+79ft-138ft

Overall

17170

Females

5978

F18-39

5978

10K→15K

6.2 - 9.3 mi

Top 61%
×3stories
+67ft-78ft

Overall

16148

Females

5381

F18-39

5381

15K→20K

9.3 - 12.4 mi

Top 60%
×5stories
+106ft-86ft

Overall

15995

Females

5342

F18-39

5342

20K→Half

12.4 - 13.1 mi

Top 63%
×2stories
+19ft-37ft

Overall

16702

Females

5713

F18-39

5713

Half→25K

13.1 - 15.5 mi

Top 61%
×4stories
+66ft-88ft

Overall

16229

Females

5576

F18-39

5576

25K→30K

15.5 - 18.6 mi

Top 59%
×9stories
+181ft-148ft

Overall

15757

Females

5359

F18-39

5359

30K→20M

18.6 - 20.0 mi

Top 61%
×5stories
+64ft-50ft

Overall

16172

Females

5669

F18-39

5669

20M→21M

20.0 - 21.0 mi

Top 57%
×8stories
+106ft-24ft

Overall

15105

Females

5122

F18-39

5122

21M→35K

21.0 - 21.8 mi

Top 65%
×7stories
+17ft-86ft

Overall

17399

Females

6492

F18-39

6492

35K→23M

21.8 - 23.0 mi

Top 59%
×5stories
+23ft-63ft

Overall

15582

Females

5501

F18-39

5501

23M→24M

23.0 - 24.0 mi

Top 60%
×6stories
+12ft-82ft

Overall

15871

Females

5736

F18-39

5736

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

15159

Females

5389

F18-39

5389

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

14404

Females

4974

F18-39

4974

25.2M→Finish

25.2 - 26.2 mi

Top 55%
×2stories
+22ft-21ft

Overall

14708

Females

5105

F18-39

5105

Passing Analysis

Category:
Athletes Passed
2213
Passed By
977
Net Change
+1236
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17283
5K → 10K357272+85#17283#17198
10K → 15K44265+377#17198#16821
15K → 20K28082+198#16821#16623
20K → Half2831-3#16623#16626
Half → 25K16593+72#16626#16554
25K → 30K26691+175#16554#16379
30K → 20M10756+51#16379#16328
20M → 21M11735+82#16328#16246
21M → 35K3576-41#16246#16287
35K → 23M12446+78#16287#16209
23M → 24M7850+28#16209#16181
24M → 40K8330+53#16181#16128
40K → 25.2M3911+28#16128#16100
25.2M → Finish9239+53#16100#16047
TOTALS2213977+1236
📊

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