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BOSTON MARATHON 2023

Erin Toothman

Bib: 11733•F

IN

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 38%
Gender (Female)
#0 / 11423
Top 18%
Masters (Masters Women)
#0 / 6539
Top 8%
Division (F40-44)
#0 / 1878
Top 17%
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
7:38/mi
23:42
↑ 97↓ 3451.5%
10K· 6.21 mi
7:20/mi
46:29
↑ 79↓ 1380.4%
15K· 9.32 mi
7:21/mi
1:09:20
↑ 67↓ 78
20K· 12.43 mi
7:52/mi
1:33:47
↑ 106↓ 860.1%
Half· 13.11 mi
7:26/mi
1:38:51
↑ 19↓ 370.5%
25K· 15.53 mi
7:32/mi
1:57:08
↑ 66↓ 880.2%
30K· 18.64 mi
7:53/mi
2:21:36
↑ 181↓ 1480.2%
20M
7:59/mi
2:32:27
↑ 64↓ 500.2%
21M
8:31/mi
2:40:58
↑ 106↓ 241.6%
35K· 21.75 mi
8:01/mi
2:46:58
↑ 17↓ 861.7%
23M
8:23/mi
2:57:28
↑ 23↓ 630.6%
24M
8:06/mi
3:05:34
↓ 821.3%
40K· 24.85 mi
8:07/mi
3:12:30
↓ 200.3%
25.2M
8:25/mi
3:15:24
↑ 13↓ 160.2%
Finish· 26.22 mi
7:25/mi
3:22:57
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:51
Pace7:32 /mi
2nd Half
Distance13.11 mi
Time1:44:06
Pace7:56 /mi
📊Positive Split: 5.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:4623:427:3823:42
7:38
-
10K
6.21 mi11:13:3346:297:2922:47
7:20
-0:18
15K
9.32 mi11:36:241:09:207:2622:51
7:21
+0:01
20K
12.43 mi12:00:511:33:477:3324:27
7:52
+0:31
Half
13.11 mi12:05:551:38:517:325:04
7:26
-0:26
25K
15.53 mi12:24:121:57:087:3218:17
7:32
+0:06
30K
18.64 mi12:48:402:21:367:3624:28
7:53
+0:21
20M
20.00 mi12:59:312:32:277:3710:51
7:59
+0:06
21M
21.00 mi13:08:022:40:587:408:31
8:31
+0:32
35K
21.75 mi13:14:022:46:587:416:00
8:01
-0:30
23M
23.00 mi13:24:322:57:287:4310:30
8:23
+0:22
24M
24.00 mi13:32:383:05:347:448:06
8:06
-0:17
40K
24.85 mi13:39:343:12:307:456:56
8:07
+0:01
25.2M
25.20 mi13:42:283:15:247:452:54
8:25
+0:18
Finish
26.22 mi13:50:013:22:577:457:33
7:25
-1:00

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

7:20 /mi

Average Pace

7:45 /mi

Slowest Pace

8:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:46:00

82% of race

Time at Steady Pace

36:57

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:44 /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 mi10:50:4623:427:3823:42
7:38
#10816
10K
6.21 mi11:13:3346:297:2922:47
7:20
#9849
15K
9.32 mi11:36:241:09:207:2622:51
7:21
#9520
20K
12.43 mi12:00:511:33:477:3324:27
7:52
#10248
Half
13.11 mi12:05:551:38:517:325:04
7:26
#10205
25K
15.53 mi12:24:121:57:087:3218:17
7:32
#9980
30K
18.64 mi12:48:402:21:367:3624:28
7:53
#9945
20M
20.00 mi12:59:312:32:277:3710:51
7:59
#9924
21M
21.00 mi13:08:022:40:587:408:31
8:31
#9937
35K
21.75 mi13:14:022:46:587:416:00
8:01
#10004
23M
23.00 mi13:24:322:57:287:4310:30
8:23
#10142
24M
24.00 mi13:32:383:05:347:448:06
8:06
#10192
40K
24.85 mi13:39:343:12:307:456:56
8:07
#10181
25.2M
25.20 mi13:42:283:15:247:452:54
8:25
#10159
Finish
26.22 mi13:50:013:22:577:457:33
7:25
#10039
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi10816223322338994(Top 34%)1449(Top 13%)1449(Top 77%)
10K6.21 mi3.10 mi9849+9671767+4661767+4669127(Top 34%)1470(Top 13%)1470(Top 78%)
15K9.32 mi3.11 mi9520+3291626+1411626+1418994(Top 34%)1449(Top 13%)1449(Top 77%)
20K12.43 mi3.11 mi10248-7281947-3211947-32112332(Top 46%)3148(Top 28%)3148(Top 168%)
Half13.11 mi0.68 mi10205+431933+141933+149689(Top 36%)1760(Top 15%)1760(Top 94%)
25K15.53 mi2.42 mi9980+2251844+891844+899110(Top 34%)1603(Top 14%)1603(Top 85%)
30K18.64 mi3.11 mi9945+351868-241868-249946(Top 37%)2136(Top 19%)2136(Top 114%)
20M20.00 mi1.36 mi9924+211888-201888-2010167(Top 38%)2307(Top 20%)2307(Top 123%)
21M21.00 mi1.00 mi9937-131920-321920-3210588(Top 40%)2661(Top 23%)2661(Top 142%)
35K21.75 mi0.75 mi10004-671974-541974-5412275(Top 46%)3566(Top 31%)3566(Top 190%)
23M23.00 mi1.25 mi10142-1382069-952069-9512495(Top 47%)3785(Top 33%)3785(Top 202%)
24M24.00 mi1.00 mi10192-502120-512120-5111948(Top 45%)3549(Top 31%)3549(Top 189%)
40K24.85 mi0.85 mi10181+112139-192139-1910776(Top 40%)3024(Top 26%)3024(Top 161%)
25.2M25.20 mi0.35 mi10159+22213921399030(Top 34%)2256(Top 20%)2256(Top 120%)
Finish26.22 mi1.02 mi10039+1202111+282111+287886(Top 30%)1785(Top 16%)1785(Top 95%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21story building
+97ft-345ft

Overall

8994

Females

1449

F40-44

1449

5K→10K

3.1 - 6.2 mi

Top 34%
×5story building
+79ft-138ft

Overall

9127

Females

1470

F40-44

1470

10K→15K

6.2 - 9.3 mi

Top 34%
×3story building
+67ft-78ft

Overall

8994

Females

1449

F40-44

1449

15K→20K

9.3 - 12.4 mi

Top 46%
×5story building
+106ft-86ft

Overall

12332

Females

3148

F40-44

3148

20K→Half

12.4 - 13.1 mi

Top 36%
×2story building
+19ft-37ft

Overall

9689

Females

1760

F40-44

1760

Half→25K

13.1 - 15.5 mi

Top 34%
×4story building
+66ft-88ft

Overall

9110

Females

1603

F40-44

1603

25K→30K

15.5 - 18.6 mi

Top 37%
×9story building
+181ft-148ft

Overall

9946

Females

2136

F40-44

2136

30K→20M

18.6 - 20.0 mi

Top 38%
×5story building
+64ft-50ft

Overall

10167

Females

2307

F40-44

2307

20M→21M

20.0 - 21.0 mi

Top 40%
×8story building
+106ft-24ft

Overall

10588

Females

2661

F40-44

2661

21M→35K

21.0 - 21.8 mi

Top 46%
×7story building
+17ft-86ft

Overall

12275

Females

3566

F40-44

3566

35K→23M

21.8 - 23.0 mi

Top 47%
×5story building
+23ft-63ft

Overall

12495

Females

3785

F40-44

3785

23M→24M

23.0 - 24.0 mi

Top 45%
×6story building
+12ft-82ft

Overall

11948

Females

3549

F40-44

3549

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

10776

Females

3024

F40-44

3024

40K→25.2M

24.9 - 25.2 mi

Top 34%
×1story
+13ft-16ft

Overall

9030

Females

2256

F40-44

2256

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×2story building
+22ft-21ft

Overall

7886

Females

1785

F40-44

1785

Passing Analysis

Category:
Athletes Passed
2457*
Passed By
1676
Net Change
+777
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10816
5K → 10K1000*33+967#10816#9849
10K → 15K37748+329#9849#9520
15K → 20K31758-728#9520#10248
20K → Half5613+43#10248#10205
Half → 25K262*37+225#10205#9980
25K → 30K168*133+35#9980#9945
30K → 20M9675+21#9945#9924
20M → 21M88100-13#9924#9937
21M → 35K2793-67#9937#10004
35K → 23M41178-138#10004#10142
23M → 24M56106-50#10142#10192
24M → 40K7160+11#10192#10181
40K → 25.2M44*22+22#10181#10159
25.2M → Finish14020+120#10159#10039
TOTALS2457*1676+777

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

📊

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