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BOSTON MARATHON 2023

Erin Schwartz

Bib: 30462•F

MA

0:00
0:00
/ mi
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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

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
8:49/mi
27:22
↑ 97↓ 3451.5%
10K· 6.21 mi
8:46/mi
54:37
↑ 79↓ 1380.4%
15K· 9.32 mi
8:48/mi
1:21:58
↑ 67↓ 78
20K· 12.43 mi
9:01/mi
1:50:00
↑ 106↓ 860.1%
Half· 13.11 mi
8:56/mi
1:56:06
↑ 19↓ 370.5%
25K· 15.53 mi
9:14/mi
2:18:30
↑ 66↓ 880.2%
30K· 18.64 mi
9:40/mi
2:48:33
↑ 181↓ 1480.2%
20M
9:58/mi
3:02:06
↑ 64↓ 500.2%
21M
11:14/mi
3:13:20
↑ 106↓ 241.6%
35K· 21.75 mi
9:59/mi
3:20:48
↑ 17↓ 861.7%
23M
10:51/mi
3:34:23
↑ 23↓ 630.6%
24M
9:58/mi
3:44:21
↓ 821.3%
40K· 24.85 mi
10:01/mi
3:52:55
↓ 200.3%
25.2M
10:52/mi
3:56:40
↑ 13↓ 160.2%
Finish· 26.22 mi
9:51/mi
4:06:42
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:06
Pace8:51 /mi
2nd Half
Distance13.11 mi
Time2:10:36
Pace9:58 /mi
📊Positive Split: 12.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:5827:228:4927:22
8:49
-
10K
6.21 mi12:12:1354:378:4727:15
8:46
-0:03
15K
9.32 mi12:39:341:21:588:4827:21
8:48
+0:02
20K
12.43 mi13:07:361:50:008:5128:02
9:01
+0:13
Half
13.11 mi13:13:421:56:068:516:06
8:56
-0:05
25K
15.53 mi13:36:062:18:308:5522:24
9:14
+0:18
30K
18.64 mi14:06:092:48:339:0330:03
9:40
+0:26
20M
20.00 mi14:19:423:02:069:0613:33
9:58
+0:18
21M
21.00 mi14:30:563:13:209:1211:14
11:14
+1:16
35K
21.75 mi14:38:243:20:489:147:28
9:59
-1:15
23M
23.00 mi14:51:593:34:239:1913:35
10:51
+0:52
24M
24.00 mi15:01:573:44:219:219:58
9:58
-0:53
40K
24.85 mi15:10:313:52:559:228:34
10:01
+0:03
25.2M
25.20 mi15:14:163:56:409:233:45
10:52
+0:51
Finish
26.22 mi15:24:184:06:429:2510:02
9:51
-1:01

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

8:46 /mi

Average Pace

9:25 /mi

Slowest Pace

11:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:18:30

56% of race

Time at Steady Pace

1:19:38

32% of race

Time at Slower Pace

28:34

12% of race

Average Pace: 9:25 /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 mi11:44:5827:228:4927:22
8:49
#19527
10K
6.21 mi12:12:1354:378:4727:15
8:46
#19623
15K
9.32 mi12:39:341:21:588:4827:21
8:48
#19584
20K
12.43 mi13:07:361:50:008:5128:02
9:01
#19597
Half
13.11 mi13:13:421:56:068:516:06
8:56
#19638
25K
15.53 mi13:36:062:18:308:5522:24
9:14
#19707
30K
18.64 mi14:06:092:48:339:0330:03
9:40
#19787
20M
20.00 mi14:19:423:02:069:0613:33
9:58
#19841
21M
21.00 mi14:30:563:13:209:1211:14
11:14
#19971
35K
21.75 mi14:38:243:20:489:147:28
9:59
#20030
23M
23.00 mi14:51:593:34:239:1913:35
10:51
#20201
24M
24.00 mi15:01:573:44:219:219:58
9:58
#20238
40K
24.85 mi15:10:313:52:559:228:34
10:01
#20218
25.2M
25.20 mi15:14:163:56:409:233:45
10:52
#20213
Finish
26.22 mi15:24:184:06:429:2510:02
9:51
#20240
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi195277535753519547(Top 73%)7413(Top 65%)7413(Top 152%)
10K6.21 mi3.10 mi19623-967548-137548-1319796(Top 74%)7581(Top 66%)7581(Top 155%)
15K9.32 mi3.11 mi19584+397503+457503+4519547(Top 73%)7413(Top 65%)7413(Top 152%)
20K12.43 mi3.11 mi19597-137486+177486+1719818(Top 74%)7569(Top 66%)7569(Top 155%)
Half13.11 mi0.68 mi19638-417505-197505-1920233(Top 76%)7804(Top 68%)7804(Top 160%)
25K15.53 mi2.42 mi19707-697540-357540-3519994(Top 75%)7690(Top 67%)7690(Top 157%)
30K18.64 mi3.11 mi19787-807609-697609-6920044(Top 75%)7792(Top 68%)7792(Top 160%)
20M20.00 mi1.36 mi19841-547646-377646-3720415(Top 77%)8086(Top 71%)8086(Top 166%)
21M21.00 mi1.00 mi19971-1307735-897735-8921343(Top 80%)8647(Top 76%)8647(Top 177%)
35K21.75 mi0.75 mi20030-597771-367771-3621214(Top 80%)8602(Top 75%)8602(Top 176%)
23M23.00 mi1.25 mi20201-1717881-1107881-11022059(Top 83%)9102(Top 80%)9102(Top 186%)
24M24.00 mi1.00 mi20238-377912-317912-3120712(Top 78%)8392(Top 73%)8392(Top 172%)
40K24.85 mi0.85 mi20218+207915-37915-320032(Top 75%)8074(Top 71%)8074(Top 165%)
25.2M25.20 mi0.35 mi20213+57915791520181(Top 76%)8150(Top 71%)8150(Top 167%)
Finish26.22 mi1.02 mi20240-277937-227937-2221310(Top 80%)8721(Top 76%)8721(Top 179%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21story building
+97ft-345ft

Overall

19547

Females

7413

F18-39

7413

5K→10K

3.1 - 6.2 mi

Top 74%
×5story building
+79ft-138ft

Overall

19796

Females

7581

F18-39

7581

10K→15K

6.2 - 9.3 mi

Top 73%
×3story building
+67ft-78ft

Overall

19547

Females

7413

F18-39

7413

15K→20K

9.3 - 12.4 mi

Top 74%
×5story building
+106ft-86ft

Overall

19818

Females

7569

F18-39

7569

20K→Half

12.4 - 13.1 mi

Top 76%
×2story building
+19ft-37ft

Overall

20233

Females

7804

F18-39

7804

Half→25K

13.1 - 15.5 mi

Top 75%
×4story building
+66ft-88ft

Overall

19994

Females

7690

F18-39

7690

25K→30K

15.5 - 18.6 mi

Top 75%
×9story building
+181ft-148ft

Overall

20044

Females

7792

F18-39

7792

30K→20M

18.6 - 20.0 mi

Top 77%
×5story building
+64ft-50ft

Overall

20415

Females

8086

F18-39

8086

20M→21M

20.0 - 21.0 mi

Top 80%
×8story building
+106ft-24ft

Overall

21343

Females

8647

F18-39

8647

21M→35K

21.0 - 21.8 mi

Top 80%
×7story building
+17ft-86ft

Overall

21214

Females

8602

F18-39

8602

35K→23M

21.8 - 23.0 mi

Top 83%
×5story building
+23ft-63ft

Overall

22059

Females

9102

F18-39

9102

23M→24M

23.0 - 24.0 mi

Top 78%
×6story building
+12ft-82ft

Overall

20712

Females

8392

F18-39

8392

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

20032

Females

8074

F18-39

8074

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

20181

Females

8150

F18-39

8150

25.2M→Finish

25.2 - 26.2 mi

Top 80%
×2story building
+22ft-21ft

Overall

21310

Females

8721

F18-39

8721

Passing Analysis

Category:
Athletes Passed
1171
Passed By
1884
Net Change
-713
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19527
5K → 10K266362-96#19527#19623
10K → 15K205166+39#19623#19584
15K → 20K152165-13#19584#19597
20K → Half1657-41#19597#19638
Half → 25K92161-69#19638#19707
25K → 30K138218-80#19707#19787
30K → 20M68122-54#19787#19841
20M → 21M42172-130#19841#19971
21M → 35K3089-59#19971#20030
35K → 23M27198-171#20030#20201
23M → 24M3572-37#20201#20238
24M → 40K4929+20#20238#20218
40K → 25.2M2318+5#20218#20213
25.2M → Finish2855-27#20213#20240
TOTALS11711884-713
📊

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