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BOSTON MARATHON 2023

Erica Gennaro

Bib: 18507•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
8:39/mi
26:53
↑ 97↓ 3451.5%
10K· 6.21 mi
8:50/mi
54:21
↑ 79↓ 1380.4%
15K· 9.32 mi
9:05/mi
1:22:33
↑ 67↓ 78
20K· 12.43 mi
8:45/mi
1:49:45
↑ 106↓ 860.1%
Half· 13.11 mi
9:02/mi
1:55:55
↑ 19↓ 370.5%
25K· 15.53 mi
8:45/mi
2:17:07
↑ 66↓ 880.2%
30K· 18.64 mi
8:55/mi
2:44:50
↑ 181↓ 1480.2%
20M
9:10/mi
2:57:17
↑ 64↓ 500.2%
21M
9:09/mi
3:06:26
↑ 106↓ 241.6%
35K· 21.75 mi
8:47/mi
3:13:00
↑ 17↓ 861.7%
23M
9:09/mi
3:24:28
↑ 23↓ 630.6%
24M
9:24/mi
3:33:52
↓ 821.3%
40K· 24.85 mi
8:50/mi
3:41:25
↓ 200.3%
25.2M
9:37/mi
3:44:44
↑ 13↓ 160.2%
Finish· 26.22 mi
9:39/mi
3:54:34
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:55
Pace8:51 /mi
2nd Half
Distance13.11 mi
Time1:58:39
Pace9:03 /mi
📊Positive Split: 2.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:0126:538:3926:53
8:39
-
10K
6.21 mi11:45:2954:218:4527:28
8:50
+0:11
15K
9.32 mi12:13:411:22:338:5128:12
9:05
+0:15
20K
12.43 mi12:40:531:49:458:5027:12
8:45
-0:20
Half
13.11 mi12:47:031:55:558:516:10
9:02
+0:17
25K
15.53 mi13:08:152:17:078:5021:12
8:45
-0:17
30K
18.64 mi13:35:582:44:508:5127:43
8:55
+0:10
20M
20.00 mi13:48:252:57:178:5212:27
9:10
+0:15
21M
21.00 mi13:57:343:06:268:539:09
9:09
-0:01
35K
21.75 mi14:04:083:13:008:526:34
8:47
-0:22
23M
23.00 mi14:15:363:24:288:5311:28
9:09
+0:22
24M
24.00 mi14:25:003:33:528:559:24
9:24
+0:15
40K
24.85 mi14:32:333:41:258:557:33
8:50
-0:34
25.2M
25.20 mi14:35:523:44:448:553:19
9:37
+0:47
Finish
26.22 mi14:45:423:54:348:579:50
9:39
+0:02

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

8:39 /mi

Average Pace

8:57 /mi

Slowest Pace

9:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:41:25

94% of race

Time at Steady Pace

13:09

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:57 /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 mi11:18:0126:538:3926:53
8:39
#18596
10K
6.21 mi11:45:2954:218:4527:28
8:50
#19385
15K
9.32 mi12:13:411:22:338:5128:12
9:05
#19905
20K
12.43 mi12:40:531:49:458:5027:12
8:45
#19490
Half
13.11 mi12:47:031:55:558:516:10
9:02
#19557
25K
15.53 mi13:08:152:17:078:5021:12
8:45
#19239
30K
18.64 mi13:35:582:44:508:5127:43
8:55
#18803
20M
20.00 mi13:48:252:57:178:5212:27
9:10
#18698
21M
21.00 mi13:57:343:06:268:539:09
9:09
#18416
35K
21.75 mi14:04:083:13:008:526:34
8:47
#18350
23M
23.00 mi14:15:363:24:288:5311:28
9:09
#18263
24M
24.00 mi14:25:003:33:528:559:24
9:24
#18301
40K
24.85 mi14:32:333:41:258:557:33
8:50
#18195
25.2M
25.20 mi14:35:523:44:448:553:19
9:37
#18165
Finish
26.22 mi14:45:423:54:348:579:50
9:39
#18288
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi185966932693220840(Top 78%)8145(Top 71%)8145(Top 167%)
10K6.21 mi3.10 mi19385-7897392-4607392-46020142(Top 76%)7779(Top 68%)7779(Top 159%)
15K9.32 mi3.11 mi19905-5207679-2877679-28720840(Top 78%)8145(Top 71%)8145(Top 167%)
20K12.43 mi3.11 mi19490+4157421+2587421+25818448(Top 69%)6765(Top 59%)6765(Top 139%)
Half13.11 mi0.68 mi19557-677460-397460-3920598(Top 77%)8011(Top 70%)8011(Top 164%)
25K15.53 mi2.42 mi19239+3187261+1997261+19917648(Top 66%)6371(Top 56%)6371(Top 130%)
30K18.64 mi3.11 mi18803+4367031+2307031+23016784(Top 63%)5945(Top 52%)5945(Top 122%)
20M20.00 mi1.36 mi18698+1056980+516980+5117386(Top 65%)6385(Top 56%)6385(Top 131%)
21M21.00 mi1.00 mi18416+2826836+1446836+14414267(Top 54%)4644(Top 41%)4644(Top 95%)
35K21.75 mi0.75 mi18350+666805+316805+3116868(Top 63%)6212(Top 54%)6212(Top 127%)
23M23.00 mi1.25 mi18263+876766+396766+3916872(Top 63%)6222(Top 54%)6222(Top 127%)
24M24.00 mi1.00 mi18301-386803-376803-3718864(Top 71%)7367(Top 64%)7367(Top 151%)
40K24.85 mi0.85 mi18195+1066753+506753+5015294(Top 57%)5476(Top 48%)5476(Top 112%)
25.2M25.20 mi0.35 mi18165+306740+136740+1315829(Top 59%)5785(Top 51%)5785(Top 118%)
Finish26.22 mi1.02 mi18288-1236814-746814-7420639(Top 78%)8369(Top 73%)8369(Top 171%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21story building
+97ft-345ft

Overall

20840

Females

8145

F18-39

8145

5K→10K

3.1 - 6.2 mi

Top 76%
×5story building
+79ft-138ft

Overall

20142

Females

7779

F18-39

7779

10K→15K

6.2 - 9.3 mi

Top 78%
×3story building
+67ft-78ft

Overall

20840

Females

8145

F18-39

8145

15K→20K

9.3 - 12.4 mi

Top 69%
×5story building
+106ft-86ft

Overall

18448

Females

6765

F18-39

6765

20K→Half

12.4 - 13.1 mi

Top 77%
×2story building
+19ft-37ft

Overall

20598

Females

8011

F18-39

8011

Half→25K

13.1 - 15.5 mi

Top 66%
×4story building
+66ft-88ft

Overall

17648

Females

6371

F18-39

6371

25K→30K

15.5 - 18.6 mi

Top 63%
×9story building
+181ft-148ft

Overall

16784

Females

5945

F18-39

5945

30K→20M

18.6 - 20.0 mi

Top 65%
×5story building
+64ft-50ft

Overall

17386

Females

6385

F18-39

6385

20M→21M

20.0 - 21.0 mi

Top 54%
×8story building
+106ft-24ft

Overall

14267

Females

4644

F18-39

4644

21M→35K

21.0 - 21.8 mi

Top 63%
×7story building
+17ft-86ft

Overall

16868

Females

6212

F18-39

6212

35K→23M

21.8 - 23.0 mi

Top 63%
×5story building
+23ft-63ft

Overall

16872

Females

6222

F18-39

6222

23M→24M

23.0 - 24.0 mi

Top 71%
×6story building
+12ft-82ft

Overall

18864

Females

7367

F18-39

7367

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

15294

Females

5476

F18-39

5476

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1story
+13ft-16ft

Overall

15829

Females

5785

F18-39

5785

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2story building
+22ft-21ft

Overall

20639

Females

8369

F18-39

8369

Passing Analysis

Category:
Athletes Passed
2226
Passed By
1918
Net Change
+308
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18596
5K → 10K96885-789#18596#19385
10K → 15K48568-520#19385#19905
15K → 20K43924+415#19905#19490
20K → Half1178-67#19490#19557
Half → 25K33921+318#19557#19239
25K → 30K44711+436#19239#18803
30K → 20M14136+105#18803#18698
20M → 21M2864+282#18698#18416
21M → 35K8014+66#18416#18350
35K → 23M13043+87#18350#18263
23M → 24M3977-38#18263#18301
24M → 40K1159+106#18301#18195
40K → 25.2M388+30#18195#18165
25.2M → Finish17140-123#18165#18288
TOTALS22261918+308
📊

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