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BOSTON MARATHON 2023

Naomi Shingleton

Bib: 8187•F

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 28%
Gender (Female)
#0 / 11423
Top 9%
Division (F18-39)
#0 / 4884
Top 18%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:18
Rank: #9641
Start → 5K
23:18 | 7:30/mi
10K· 6.21 mi
46:51
Rank: #10392 (-751)
5K → 10K
23:33 | 7:35/mi
15K· 9.32 mi
1:10:37
Rank: #10726 (-334)
10K → 15K
23:46 | 7:39/mi
20K· 12.43 mi
1:33:51
Rank: #10288 (+438)
15K → 20K
23:14 | 7:29/mi
Half· 13.11 mi
1:38:48
Rank: #10165 (+123)
20K → Half
4:57 | 7:15/mi
25K· 15.53 mi
1:56:43
Rank: #9767 (+398)
Half → 25K
17:55 | 7:23/mi
30K· 18.64 mi
2:19:25
Rank: #8998 (+769)
25K → 30K
22:42 | 7:18/mi
20M
2:29:14
Rank: #8647 (+351)
30K → 20M
9:49 | 7:13/mi
21M
2:36:51
Rank: #8418 (+229)
20M → 21M
7:37 | 7:37/mi
35K· 21.75 mi
2:41:54
Rank: #8206 (+212)
21M → 35K
5:03 | 6:45/mi
23M
2:50:58
Rank: #7947 (+259)
35K → 23M
9:04 | 7:14/mi
24M
2:57:58
Rank: #7744 (+203)
23M → 24M
7:00 | 7:00/mi
40K· 24.85 mi
3:04:20
Rank: #7664 (+80)
24M → 40K
6:22 | 7:27/mi
25.2M
3:07:00
Rank: #7608 (+56)
40K → 25.2M
2:40 | 7:44/mi
Finish· 26.22 mi
3:14:10
Rank: #7500 (+108)
25.2M → Finish
7:10 | 7:02/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:38:48
Pace7:32 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:35:22
Pace7:16 /mi
📊Negative Split: 3.5% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:4423:187:3023:18
7:30
-
10K
6.21 mi11:12:1746:517:3223:33
7:35
+0:05
15K
9.32 mi11:36:031:10:377:3523:46
7:39
+0:04
20K
12.43 mi11:59:171:33:517:3323:14
7:29
-0:10
Half
13.11 mi12:04:141:38:487:324:57
7:15
-0:14
25K
15.53 mi12:22:091:56:437:3117:55
7:23
+0:08
30K
18.64 mi12:44:512:19:257:2922:42
7:18
-0:05
20M
20.00 mi12:54:402:29:147:289:49
7:13
-0:05
21M
21.00 mi13:02:172:36:517:287:37
7:37
+0:24
35K
21.75 mi13:07:202:41:547:275:03
6:45
-0:52
23M
23.00 mi13:16:242:50:587:269:04
7:14
+0:29
24M
24.00 mi13:23:242:57:587:257:00
7:00
-0:14
40K
24.85 mi13:29:463:04:207:256:22
7:27
+0:27
25.2M
25.20 mi13:32:263:07:007:252:40
7:44
+0:17
Finish
26.22 mi13:39:363:14:107:257:10
7:02
-0:42

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

6:45 /mi

Average Pace

7:25 /mi

Slowest Pace

7:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:23:40

43% of race

Time at Steady Pace

1:50:30

57% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:24 /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 mi10:48:4423:187:3023:18
7:30
#9641
10K
6.21 mi11:12:1746:517:3223:33
7:35
#10392
15K
9.32 mi11:36:031:10:377:3523:46
7:39
#10726
20K
12.43 mi11:59:171:33:517:3323:14
7:29
#10288
Half
13.11 mi12:04:141:38:487:324:57
7:15
#10165
25K
15.53 mi12:22:091:56:437:3117:55
7:23
#9767
30K
18.64 mi12:44:512:19:257:2922:42
7:18
#8998
20M
20.00 mi12:54:402:29:147:289:49
7:13
#8647
21M
21.00 mi13:02:172:36:517:287:37
7:37
#8418
35K
21.75 mi13:07:202:41:547:275:03
6:45
#8206
23M
23.00 mi13:16:242:50:587:269:04
7:14
#7947
24M
24.00 mi13:23:242:57:587:257:00
7:00
#7744
40K
24.85 mi13:29:463:04:207:256:22
7:27
#7664
25.2M
25.20 mi13:32:263:07:007:252:40
7:44
#7608
Finish
26.22 mi13:39:363:14:107:257:10
7:02
#7500
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi96411675167511413(Top 43%)2570(Top 22%)2570(Top 53%)
10K6.21 mi3.10 mi10392-7512021-3462021-34611135(Top 42%)2386(Top 21%)2386(Top 49%)
15K9.32 mi3.11 mi10726-3342184-1632184-16311413(Top 43%)2570(Top 22%)2570(Top 53%)
20K12.43 mi3.11 mi10288+4381968+2161968+2169153(Top 34%)1545(Top 14%)1545(Top 32%)
Half13.11 mi0.68 mi10165+1231916+521916+528296(Top 31%)1201(Top 11%)1201(Top 25%)
25K15.53 mi2.42 mi9767+3981748+1681748+1687950(Top 30%)1163(Top 10%)1163(Top 24%)
30K18.64 mi3.11 mi8998+7691483+2651483+2656070(Top 23%)653(Top 6%)653(Top 13%)
20M20.00 mi1.36 mi8647+3511369+1141369+1145267(Top 20%)521(Top 5%)521(Top 11%)
21M21.00 mi1.00 mi8418+2291309+601309+605225(Top 20%)596(Top 5%)596(Top 12%)
35K21.75 mi0.75 mi8206+2121242+671242+673941(Top 15%)323(Top 3%)323(Top 7%)
23M23.00 mi1.25 mi7947+2591168+741168+745027(Top 19%)541(Top 5%)541(Top 11%)
24M24.00 mi1.00 mi7744+2031113+551113+554712(Top 18%)500(Top 4%)500(Top 10%)
40K24.85 mi0.85 mi7664+801099+141099+146396(Top 24%)1114(Top 10%)1114(Top 23%)
25.2M25.20 mi0.35 mi7608+561089+101089+105128(Top 19%)773(Top 7%)773(Top 16%)
Finish26.22 mi1.02 mi7500+1081076+131076+135433(Top 20%)880(Top 8%)880(Top 18%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21stories
+97ft-345ft

Overall

11413

Females

2570

F18-39

2570

5K→10K

3.1 - 6.2 mi

Top 42%
×5stories
+79ft-138ft

Overall

11135

Females

2386

F18-39

2386

10K→15K

6.2 - 9.3 mi

Top 43%
×3stories
+67ft-78ft

Overall

11413

Females

2570

F18-39

2570

15K→20K

9.3 - 12.4 mi

Top 34%
×5stories
+106ft-86ft

Overall

9153

Females

1545

F18-39

1545

20K→Half

12.4 - 13.1 mi

Top 31%
×2stories
+19ft-37ft

Overall

8296

Females

1201

F18-39

1201

Half→25K

13.1 - 15.5 mi

Top 30%
×4stories
+66ft-88ft

Overall

7950

Females

1163

F18-39

1163

25K→30K

15.5 - 18.6 mi

Top 23%
×9stories
+181ft-148ft

Overall

6070

Females

653

F18-39

653

30K→20M

18.6 - 20.0 mi

Top 20%
×5stories
+64ft-50ft

Overall

5267

Females

521

F18-39

521

20M→21M

20.0 - 21.0 mi

Top 20%
×8stories
+106ft-24ft

Overall

5225

Females

596

F18-39

596

21M→35K

21.0 - 21.8 mi

Top 15%
×7stories
+17ft-86ft

Overall

3941

Females

323

F18-39

323

35K→23M

21.8 - 23.0 mi

Top 19%
×5stories
+23ft-63ft

Overall

5027

Females

541

F18-39

541

23M→24M

23.0 - 24.0 mi

Top 18%
×6stories
+12ft-82ft

Overall

4712

Females

500

F18-39

500

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6396

Females

1114

F18-39

1114

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5128

Females

773

F18-39

773

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2stories
+22ft-21ft

Overall

5433

Females

880

F18-39

880

Passing Analysis

Category:
Athletes Passed
3466*
Passed By
1324
Net Change
+2141
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9641
5K → 10K83833-751#9641#10392
10K → 15K79413-334#10392#10726
15K → 20K452*14+438#10726#10288
20K → Half1252+123#10288#10165
Half → 25K405*7+398#10165#9767
25K → 30K770*1+769#9767#8998
30K → 20M3510+351#8998#8647
20M → 21M2301+229#8647#8418
21M → 35K2120+212#8418#8206
35K → 23M2612+259#8206#7947
23M → 24M2063+203#7947#7744
24M → 40K10323+80#7744#7664
40K → 25.2M626+56#7664#7608
25.2M → Finish12719+108#7608#7500
TOTALS3466*1324+2141

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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