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BOSTON MARATHON 2023

Amy Natalini

Bib: 5316•F

OH

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 12%
Gender (Female)
#0 / 11423
Top 1%
Masters (Masters Women)
#0 / 6539
Top 0.4%
Division (F40-44)
#0 / 1878
Top 1%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:24
Rank: #5480
Start → 5K
21:24 | 6:53/mi
10K· 6.21 mi
42:17
Rank: #5017 (+463)
5K → 10K
20:53 | 6:43/mi
15K· 9.32 mi
1:03:09
Rank: #4761 (+256)
10K → 15K
20:52 | 6:43/mi
20K· 12.43 mi
1:24:02
Rank: #4475 (+286)
15K → 20K
20:53 | 6:43/mi
Half· 13.11 mi
1:28:35
Rank: #4439 (+36)
20K → Half
4:33 | 6:40/mi
25K· 15.53 mi
1:44:52
Rank: #4232 (+207)
Half → 25K
16:17 | 6:43/mi
30K· 18.64 mi
2:05:51
Rank: #3868 (+364)
25K → 30K
20:59 | 6:45/mi
20M
2:14:56
Rank: #3666 (+202)
30K → 20M
9:05 | 6:41/mi
21M
2:22:07
Rank: #3599 (+67)
20M → 21M
7:11 | 7:11/mi
35K· 21.75 mi
2:27:04
Rank: #3554 (+45)
21M → 35K
4:57 | 6:37/mi
23M
2:35:25
Rank: #3395 (+159)
35K → 23M
8:21 | 6:40/mi
24M
2:41:57
Rank: #3306 (+89)
23M → 24M
6:32 | 6:32/mi
40K· 24.85 mi
2:47:38
Rank: #3231 (+75)
24M → 40K
5:41 | 6:39/mi
25.2M
2:50:07
Rank: #3204 (+27)
40K → 25.2M
2:29 | 7:12/mi
Finish· 26.22 mi
2:56:47
Rank: #3140 (+64)
25.2M → Finish
6:40 | 6:33/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:28:35
Pace6:45 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:28:12
Pace6:44 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:5721:246:5321:24
6:53
-
10K
6.21 mi10:44:5042:176:4820:53
6:43
-0:10
15K
9.32 mi11:05:421:03:096:4720:52
6:43
0:00
20K
12.43 mi11:26:351:24:026:4620:53
6:43
0:00
Half
13.11 mi11:31:081:28:356:454:33
6:40
-0:03
25K
15.53 mi11:47:251:44:526:4516:17
6:43
+0:03
30K
18.64 mi12:08:242:05:516:4520:59
6:45
+0:02
20M
20.00 mi12:17:292:14:566:459:05
6:41
-0:04
21M
21.00 mi12:24:402:22:076:467:11
7:11
+0:30
35K
21.75 mi12:29:372:27:046:464:57
6:37
-0:34
23M
23.00 mi12:37:582:35:256:458:21
6:40
+0:03
24M
24.00 mi12:44:302:41:576:456:32
6:32
-0:08
40K
24.85 mi12:50:112:47:386:455:41
6:39
+0:07
25.2M
25.20 mi12:52:402:50:076:452:29
7:12
+0:33
Finish
26.22 mi12:59:202:56:476:456:40
6:33
-0:39

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

6:32 /mi

Average Pace

6:45 /mi

Slowest Pace

7:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:54:18

99% of race

Time at Steady Pace

2:29

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:45 /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 mi10:23:5721:246:5321:24
6:53
#5480
10K
6.21 mi10:44:5042:176:4820:53
6:43
#5017
15K
9.32 mi11:05:421:03:096:4720:52
6:43
#4761
20K
12.43 mi11:26:351:24:026:4620:53
6:43
#4475
Half
13.11 mi11:31:081:28:356:454:33
6:40
#4439
25K
15.53 mi11:47:251:44:526:4516:17
6:43
#4232
30K
18.64 mi12:08:242:05:516:4520:59
6:45
#3868
20M
20.00 mi12:17:292:14:566:459:05
6:41
#3666
21M
21.00 mi12:24:402:22:076:467:11
7:11
#3599
35K
21.75 mi12:29:372:27:046:464:57
6:37
#3554
23M
23.00 mi12:37:582:35:256:458:21
6:40
#3395
24M
24.00 mi12:44:302:41:576:456:32
6:32
#3306
40K
24.85 mi12:50:112:47:386:455:41
6:39
#3231
25.2M
25.20 mi12:52:402:50:076:452:29
7:12
#3204
Finish
26.22 mi12:59:202:56:476:456:40
6:33
#3140
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi54804124124305(Top 16%)266(Top 2%)266(Top 14%)
10K6.21 mi3.10 mi5017+463357+55357+554579(Top 17%)298(Top 3%)298(Top 16%)
15K9.32 mi3.11 mi4761+256324+33324+334305(Top 16%)266(Top 2%)266(Top 14%)
20K12.43 mi3.11 mi4475+286287+37287+373758(Top 14%)205(Top 2%)205(Top 11%)
Half13.11 mi0.68 mi4439+36280+7280+74135(Top 16%)251(Top 2%)251(Top 13%)
25K15.53 mi2.42 mi4232+207259+21259+213511(Top 13%)188(Top 2%)188(Top 10%)
30K18.64 mi3.11 mi3868+364218+41218+412723(Top 10%)136(Top 1%)136(Top 7%)
20M20.00 mi1.36 mi3666+202200+18200+182231(Top 8%)109(Top 1.0%)109(Top 6%)
21M21.00 mi1.00 mi3599+67192+8192+83039(Top 11%)187(Top 2%)187(Top 10%)
35K21.75 mi0.75 mi3554+45186+6186+63153(Top 12%)200(Top 2%)200(Top 11%)
23M23.00 mi1.25 mi3395+159177+9177+92075(Top 8%)110(Top 1.0%)110(Top 6%)
24M24.00 mi1.00 mi3306+89173+4173+42270(Top 9%)144(Top 1%)144(Top 8%)
40K24.85 mi0.85 mi3231+75171+2171+22142(Top 8%)142(Top 1%)142(Top 8%)
25.2M25.20 mi0.35 mi3204+271711712600(Top 10%)192(Top 2%)192(Top 10%)
Finish26.22 mi1.02 mi3140+64167+4167+42710(Top 10%)231(Top 2%)231(Top 12%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4305

Females

266

F40-44

266

5K→10K

3.1 - 6.2 mi

Top 17%
×5stories
+79ft-138ft

Overall

4579

Females

298

F40-44

298

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4305

Females

266

F40-44

266

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

3758

Females

205

F40-44

205

20K→Half

12.4 - 13.1 mi

Top 16%
×2stories
+19ft-37ft

Overall

4135

Females

251

F40-44

251

Half→25K

13.1 - 15.5 mi

Top 13%
×4stories
+66ft-88ft

Overall

3511

Females

188

F40-44

188

25K→30K

15.5 - 18.6 mi

Top 10%
×9stories
+181ft-148ft

Overall

2723

Females

136

F40-44

136

30K→20M

18.6 - 20.0 mi

Top 8%
×5stories
+64ft-50ft

Overall

2231

Females

109

F40-44

109

20M→21M

20.0 - 21.0 mi

Top 11%
×8stories
+106ft-24ft

Overall

3039

Females

187

F40-44

187

21M→35K

21.0 - 21.8 mi

Top 12%
×7stories
+17ft-86ft

Overall

3153

Females

200

F40-44

200

35K→23M

21.8 - 23.0 mi

Top 8%
×5stories
+23ft-63ft

Overall

2075

Females

110

F40-44

110

23M→24M

23.0 - 24.0 mi

Top 9%
×6stories
+12ft-82ft

Overall

2270

Females

144

F40-44

144

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2142

Females

142

F40-44

142

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2600

Females

192

F40-44

192

25.2M→Finish

25.2 - 26.2 mi

Top 10%
×2stories
+22ft-21ft

Overall

2710

Females

231

F40-44

231

Passing Analysis

Category:
Athletes Passed
2535
Passed By
195
Net Change
+2340
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5480
5K → 10K51653+463#5480#5017
10K → 15K28226+256#5017#4761
15K → 20K29812+286#4761#4475
20K → Half448+36#4475#4439
Half → 25K21811+207#4439#4232
25K → 30K3706+364#4232#3868
30K → 20M2042+202#3868#3666
20M → 21M8215+67#3666#3599
21M → 35K5813+45#3599#3554
35K → 23M1678+159#3554#3395
23M → 24M967+89#3395#3306
24M → 40K838+75#3306#3231
40K → 25.2M358+27#3231#3204
25.2M → Finish8218+64#3204#3140
TOTALS2535195+2340
📊

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