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BOSTON MARATHON 2023

Natasha Grant

Bib: 16052•F

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Overall
#0 / 26622
Gender (Female)
#0 / 11423
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
26:13
Rank: #17153
Start → 5K
26:13 | 8:26/mi
10K· 6.21 mi
52:21
Rank: #17392 (-239)
5K → 10K
26:08 | 8:25/mi
15K· 9.32 mi
1:18:51
Rank: #17600 (-208)
10K → 15K
26:30 | 8:32/mi
20K· 12.43 mi
1:46:26
Rank: #17992 (-392)
15K → 20K
27:35 | 8:53/mi
Half· 13.11 mi
1:52:22
Rank: #18027 (-35)
20K → Half
5:56 | 8:42/mi
25K· 15.53 mi
2:16:07
Rank: #18909 (-882)
Half → 25K
23:45 | 9:48/mi
30K· 18.64 mi
2:46:33
Rank: #19282 (-373)
25K → 30K
30:26 | 9:48/mi
20M
3:00:11
Rank: #19408 (-126)
30K → 20M
13:38 | 10:02/mi
21M
3:10:36
Rank: #19395 (+13)
20M → 21M
10:25 | 10:25/mi
35K· 21.75 mi
3:17:48
Rank: #19441 (-46)
21M → 35K
7:12 | 9:37/mi
23M
3:30:24
Rank: #19515 (-74)
35K → 23M
12:36 | 10:04/mi
24M
3:39:53
Rank: #19514 (+1)
23M → 24M
9:29 | 9:29/mi
40K· 24.85 mi
3:48:06
Rank: #19486 (+28)
24M → 40K
8:13 | 9:37/mi
25.2M
3:51:30
Rank: #19464 (+22)
40K → 25.2M
3:24 | 9:52/mi
Finish· 26.22 mi
4:00:02
Rank: #19323 (+141)
25.2M → Finish
8:32 | 8:22/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:22
Pace8:34 /mi
2nd Half
Distance13.11 mi
Time2:07:40
Pace9:44 /mi
📊Positive Split: 13.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:3626:138:2626:13
8:26
-
10K
6.21 mi11:44:4452:218:2526:08
8:25
-0:01
15K
9.32 mi12:11:141:18:518:2826:30
8:32
+0:07
20K
12.43 mi12:38:491:46:268:3427:35
8:53
+0:21
Half
13.11 mi12:44:451:52:228:345:56
8:42
-0:11
25K
15.53 mi13:08:302:16:078:4623:45
9:48
+1:06
30K
18.64 mi13:38:562:46:338:5630:26
9:48
0:00
20M
20.00 mi13:52:343:00:119:0113:38
10:02
+0:14
21M
21.00 mi14:02:593:10:369:0510:25
10:25
+0:23
35K
21.75 mi14:10:113:17:489:067:12
9:37
-0:48
23M
23.00 mi14:22:473:30:249:0912:36
10:04
+0:27
24M
24.00 mi14:32:163:39:539:109:29
9:29
-0:35
40K
24.85 mi14:40:293:48:069:118:13
9:37
+0:08
25.2M
25.20 mi14:43:533:51:309:113:24
9:52
+0:15
Finish
26.22 mi14:52:254:00:029:108:32
8:22
-1:30

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

8:22 /mi

Average Pace

9:10 /mi

Slowest Pace

10:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:00:54

50% of race

Time at Steady Pace

1:22:29

34% of race

Time at Slower Pace

36:39

15% of race

Average Pace: 9:09 /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 mi11:18:3626:138:2626:13
8:26
#17153
10K
6.21 mi11:44:4452:218:2526:08
8:25
#17392
15K
9.32 mi12:11:141:18:518:2826:30
8:32
#17600
20K
12.43 mi12:38:491:46:268:3427:35
8:53
#17992
Half
13.11 mi12:44:451:52:228:345:56
8:42
#18027
25K
15.53 mi13:08:302:16:078:4623:45
9:48
#18909
30K
18.64 mi13:38:562:46:338:5630:26
9:48
#19282
20M
20.00 mi13:52:343:00:119:0113:38
10:02
#19408
21M
21.00 mi14:02:593:10:369:0510:25
10:25
#19395
35K
21.75 mi14:10:113:17:489:067:12
9:37
#19441
23M
23.00 mi14:22:473:30:249:0912:36
10:04
#19515
24M
24.00 mi14:32:163:39:539:109:29
9:29
#19514
40K
24.85 mi14:40:293:48:069:118:13
9:37
#19486
25.2M
25.20 mi14:43:533:51:309:113:24
9:52
#19464
Finish
26.22 mi14:52:254:00:029:108:32
8:22
#19323
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi171536035603518028(Top 68%)6516(Top 57%)6516(Top 133%)
10K6.21 mi3.10 mi17392-2396160-1256160-12517666(Top 66%)6287(Top 55%)6287(Top 129%)
15K9.32 mi3.11 mi17600-2086278-1186278-11818028(Top 68%)6516(Top 57%)6516(Top 133%)
20K12.43 mi3.11 mi17992-3926515-2376515-23719119(Top 72%)7164(Top 63%)7164(Top 147%)
Half13.11 mi0.68 mi18027-356530-156530-1518984(Top 71%)7083(Top 62%)7083(Top 145%)
25K15.53 mi2.42 mi18909-8827069-5397069-53921724(Top 82%)8686(Top 76%)8686(Top 178%)
30K18.64 mi3.11 mi19282-3737304-2357304-23520438(Top 77%)8016(Top 70%)8016(Top 164%)
20M20.00 mi1.36 mi19408-1267395-917395-9120567(Top 77%)8167(Top 71%)8167(Top 167%)
21M21.00 mi1.00 mi19395+137399-47399-419324(Top 73%)7532(Top 66%)7532(Top 154%)
35K21.75 mi0.75 mi19441-467429-307429-3020223(Top 76%)8061(Top 71%)8061(Top 165%)
23M23.00 mi1.25 mi19515-747476-477476-4720174(Top 76%)8058(Top 71%)8058(Top 165%)
24M24.00 mi1.00 mi19514+17491-157491-1519163(Top 72%)7539(Top 66%)7539(Top 154%)
40K24.85 mi0.85 mi19486+287483+87483+818749(Top 70%)7358(Top 64%)7358(Top 151%)
25.2M25.20 mi0.35 mi19464+227472+117472+1116891(Top 63%)6382(Top 56%)6382(Top 131%)
Finish26.22 mi1.02 mi19323+1417392+807392+8014617(Top 55%)5068(Top 44%)5068(Top 104%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×21stories
+97ft-345ft

Overall

18028

Females

6516

F18-39

6516

5K→10K

3.1 - 6.2 mi

Top 66%
×5stories
+79ft-138ft

Overall

17666

Females

6287

F18-39

6287

10K→15K

6.2 - 9.3 mi

Top 68%
×3stories
+67ft-78ft

Overall

18028

Females

6516

F18-39

6516

15K→20K

9.3 - 12.4 mi

Top 72%
×5stories
+106ft-86ft

Overall

19119

Females

7164

F18-39

7164

20K→Half

12.4 - 13.1 mi

Top 71%
×2stories
+19ft-37ft

Overall

18984

Females

7083

F18-39

7083

Half→25K

13.1 - 15.5 mi

Top 82%
×4stories
+66ft-88ft

Overall

21724

Females

8686

F18-39

8686

25K→30K

15.5 - 18.6 mi

Top 77%
×9stories
+181ft-148ft

Overall

20438

Females

8016

F18-39

8016

30K→20M

18.6 - 20.0 mi

Top 77%
×5stories
+64ft-50ft

Overall

20567

Females

8167

F18-39

8167

20M→21M

20.0 - 21.0 mi

Top 73%
×8stories
+106ft-24ft

Overall

19324

Females

7532

F18-39

7532

21M→35K

21.0 - 21.8 mi

Top 76%
×7stories
+17ft-86ft

Overall

20223

Females

8061

F18-39

8061

35K→23M

21.8 - 23.0 mi

Top 76%
×5stories
+23ft-63ft

Overall

20174

Females

8058

F18-39

8058

23M→24M

23.0 - 24.0 mi

Top 72%
×6stories
+12ft-82ft

Overall

19163

Females

7539

F18-39

7539

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

18749

Females

7358

F18-39

7358

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1story
+13ft-16ft

Overall

16891

Females

6382

F18-39

6382

25.2M→Finish

25.2 - 26.2 mi

Top 55%
×2stories
+22ft-21ft

Overall

14617

Females

5068

F18-39

5068

Passing Analysis

Category:
Athletes Passed
1040
Passed By
3210
Net Change
-2170
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17153
5K → 10K214453-239#17153#17392
10K → 15K120328-208#17392#17600
15K → 20K83475-392#17600#17992
20K → Half2055-35#17992#18027
Half → 25K14896-882#18027#18909
25K → 30K73446-373#18909#19282
30K → 20M50176-126#19282#19408
20M → 21M9481+13#19408#19395
21M → 35K2571-46#19395#19441
35K → 23M54128-74#19441#19515
23M → 24M5251+1#19515#19514
24M → 40K6537+28#19514#19486
40K → 25.2M308+22#19486#19464
25.2M → Finish1465+141#19464#19323
TOTALS10403210-2170
📊

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