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BOSTON MARATHON 2023

Laura Nitti

Bib: 15665•F

OR

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 35%
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
8:00/mi
24:51
↑ 97↓ 3451.5%
10K· 6.21 mi
8:19/mi
50:40
↑ 79↓ 1380.4%
15K· 9.32 mi
8:01/mi
1:15:34
↑ 67↓ 78
20K· 12.43 mi
8:11/mi
1:40:59
↑ 106↓ 860.1%
Half· 13.11 mi
8:02/mi
1:46:28
↑ 19↓ 370.5%
25K· 15.53 mi
8:17/mi
2:06:32
↑ 66↓ 880.2%
30K· 18.64 mi
8:18/mi
2:32:18
↑ 181↓ 1480.2%
20M
8:18/mi
2:43:35
↑ 64↓ 500.2%
21M
8:41/mi
2:52:16
↑ 106↓ 241.6%
35K· 21.75 mi
8:20/mi
2:58:30
↑ 17↓ 861.7%
23M
8:15/mi
3:08:50
↑ 23↓ 630.6%
24M
7:58/mi
3:16:48
↓ 821.3%
40K· 24.85 mi
8:01/mi
3:23:39
↓ 200.3%
25.2M
8:42/mi
3:26:39
↑ 13↓ 160.2%
Finish· 26.22 mi
7:41/mi
3:34:29
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:28
Pace8:07 /mi
2nd Half
Distance13.11 mi
Time1:48:01
Pace8:14 /mi
📊Positive Split: 1.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:0924:518:0024:51
8:00
-
10K
6.21 mi11:40:5850:408:0925:49
8:19
+0:19
15K
9.32 mi12:05:521:15:348:0624:54
8:01
-0:18
20K
12.43 mi12:31:171:40:598:0825:25
8:11
+0:10
Half
13.11 mi12:36:461:46:288:075:29
8:02
-0:09
25K
15.53 mi12:56:502:06:328:0920:04
8:17
+0:15
30K
18.64 mi13:22:362:32:188:1025:46
8:18
+0:01
20M
20.00 mi13:33:532:43:358:1111:17
8:18
0:00
21M
21.00 mi13:42:342:52:168:128:41
8:41
+0:23
35K
21.75 mi13:48:482:58:308:126:14
8:20
-0:21
23M
23.00 mi13:59:083:08:508:1310:20
8:15
-0:05
24M
24.00 mi14:07:063:16:488:127:58
7:58
-0:17
40K
24.85 mi14:13:573:23:398:126:51
8:01
+0:03
25.2M
25.20 mi14:16:573:26:398:123:00
8:42
+0:41
Finish
26.22 mi14:24:473:34:298:117:50
7:41
-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

7:41 /mi

Average Pace

8:11 /mi

Slowest Pace

8:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:22:48

95% of race

Time at Steady Pace

11:41

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:11 /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 mi11:15:0924:518:0024:51
8:00
#14017
10K
6.21 mi11:40:5850:408:0925:49
8:19
#15490
15K
9.32 mi12:05:521:15:348:0624:54
8:01
#15168
20K
12.43 mi12:31:171:40:598:0825:25
8:11
#15062
Half
13.11 mi12:36:461:46:288:075:29
8:02
#15022
25K
15.53 mi12:56:502:06:328:0920:04
8:17
#14952
30K
18.64 mi13:22:362:32:188:1025:46
8:18
#14595
20M
20.00 mi13:33:532:43:358:1111:17
8:18
#14406
21M
21.00 mi13:42:342:52:168:128:41
8:41
#14238
35K
21.75 mi13:48:482:58:308:126:14
8:20
#14224
23M
23.00 mi13:59:083:08:508:1310:20
8:15
#14031
24M
24.00 mi14:07:063:16:488:127:58
7:58
#13875
40K
24.85 mi14:13:573:23:398:126:51
8:01
#13723
25.2M
25.20 mi14:16:573:26:398:123:00
8:42
#13653
Finish
26.22 mi14:24:473:34:298:117:50
7:41
#13501
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi140174043404314505(Top 54%)4386(Top 38%)4386(Top 90%)
10K6.21 mi3.10 mi15490-14734963-9204963-92016997(Top 64%)5867(Top 51%)5867(Top 120%)
15K9.32 mi3.11 mi15168+3224762+2014762+20114505(Top 54%)4386(Top 38%)4386(Top 90%)
20K12.43 mi3.11 mi15062+1064720+424720+4214836(Top 56%)4604(Top 40%)4604(Top 94%)
Half13.11 mi0.68 mi15022+404698+224698+2214693(Top 55%)4489(Top 39%)4489(Top 92%)
25K15.53 mi2.42 mi14952+704681+174681+1714789(Top 56%)4693(Top 41%)4693(Top 96%)
30K18.64 mi3.11 mi14595+3574493+1884493+18813006(Top 49%)3765(Top 33%)3765(Top 77%)
20M20.00 mi1.36 mi14406+1894422+714422+7112416(Top 47%)3534(Top 31%)3534(Top 72%)
21M21.00 mi1.00 mi14238+1684336+864336+8611595(Top 44%)3200(Top 28%)3200(Top 66%)
35K21.75 mi0.75 mi14224+144346-104346-1014299(Top 54%)4716(Top 41%)4716(Top 97%)
23M23.00 mi1.25 mi14031+1934246+1004246+10011580(Top 43%)3297(Top 29%)3297(Top 68%)
24M24.00 mi1.00 mi13875+1564182+644182+6411048(Top 41%)3121(Top 27%)3121(Top 64%)
40K24.85 mi0.85 mi13723+1524096+864096+8610186(Top 38%)2758(Top 24%)2758(Top 56%)
25.2M25.20 mi0.35 mi13653+704057+394057+3910845(Top 41%)3119(Top 27%)3119(Top 64%)
Finish26.22 mi1.02 mi13501+1523992+653992+659935(Top 37%)2682(Top 23%)2682(Top 55%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21story building
+97ft-345ft

Overall

14505

Females

4386

F18-39

4386

5K→10K

3.1 - 6.2 mi

Top 64%
×5story building
+79ft-138ft

Overall

16997

Females

5867

F18-39

5867

10K→15K

6.2 - 9.3 mi

Top 54%
×3story building
+67ft-78ft

Overall

14505

Females

4386

F18-39

4386

15K→20K

9.3 - 12.4 mi

Top 56%
×5story building
+106ft-86ft

Overall

14836

Females

4604

F18-39

4604

20K→Half

12.4 - 13.1 mi

Top 55%
×2story building
+19ft-37ft

Overall

14693

Females

4489

F18-39

4489

Half→25K

13.1 - 15.5 mi

Top 56%
×4story building
+66ft-88ft

Overall

14789

Females

4693

F18-39

4693

25K→30K

15.5 - 18.6 mi

Top 49%
×9story building
+181ft-148ft

Overall

13006

Females

3765

F18-39

3765

30K→20M

18.6 - 20.0 mi

Top 47%
×5story building
+64ft-50ft

Overall

12416

Females

3534

F18-39

3534

20M→21M

20.0 - 21.0 mi

Top 44%
×8story building
+106ft-24ft

Overall

11595

Females

3200

F18-39

3200

21M→35K

21.0 - 21.8 mi

Top 54%
×7story building
+17ft-86ft

Overall

14299

Females

4716

F18-39

4716

35K→23M

21.8 - 23.0 mi

Top 43%
×5story building
+23ft-63ft

Overall

11580

Females

3297

F18-39

3297

23M→24M

23.0 - 24.0 mi

Top 41%
×6story building
+12ft-82ft

Overall

11048

Females

3121

F18-39

3121

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10186

Females

2758

F18-39

2758

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

10845

Females

3119

F18-39

3119

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×2story building
+22ft-21ft

Overall

9935

Females

2682

F18-39

2682

Passing Analysis

Category:
Athletes Passed
2454
Passed By
1938
Net Change
+516
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14017
5K → 10K231496-1473#14017#15490
10K → 15K38159+322#15490#15168
15K → 20K242136+106#15168#15062
20K → Half5515+40#15062#15022
Half → 25K15989+70#15022#14952
25K → 30K38528+357#14952#14595
30K → 20M20314+189#14595#14406
20M → 21M1779+168#14406#14238
21M → 35K5945+14#14238#14224
35K → 23M20815+193#14224#14031
23M → 24M1648+156#14031#13875
24M → 40K1575+152#13875#13723
40K → 25.2M8010+70#13723#13653
25.2M → Finish1619+152#13653#13501
TOTALS24541938+516
📊

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