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BOSTON MARATHON 2023

Leah Larocque

Bib: 12164•F

ON

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0:00
/ mi
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Overall
#0 / 26622
Top 48%
Gender (Female)
#0 / 11423
Top 31%
Division (F18-39)
#0 / 4884
Top 49%
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
7:27/mi
23:08
↑ 97↓ 3451.5%
10K· 6.21 mi
7:27/mi
46:16
↑ 79↓ 1380.4%
15K· 9.32 mi
7:22/mi
1:09:09
↑ 67↓ 78
20K· 12.43 mi
7:38/mi
1:32:52
↑ 106↓ 860.1%
Half· 13.11 mi
7:40/mi
1:38:06
↑ 19↓ 370.5%
25K· 15.53 mi
8:20/mi
1:58:18
↑ 66↓ 880.2%
30K· 18.64 mi
9:04/mi
2:26:28
↑ 181↓ 1480.2%
20M
8:36/mi
2:38:09
↑ 64↓ 500.2%
21M
9:37/mi
2:47:46
↑ 106↓ 241.6%
35K· 21.75 mi
8:04/mi
2:53:48
↑ 17↓ 861.7%
23M
8:17/mi
3:04:10
↑ 23↓ 630.6%
24M
8:10/mi
3:12:20
↓ 821.3%
40K· 24.85 mi
8:18/mi
3:19:26
↓ 200.3%
25.2M
8:59/mi
3:22:32
↑ 13↓ 160.2%
Finish· 26.22 mi
9:15/mi
3:31:58
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:06
Pace7:29 /mi
2nd Half
Distance13.11 mi
Time1:53:52
Pace8:41 /mi
📊Positive Split: 16.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:5323:087:2723:08
7:27
-
10K
6.21 mi11:14:0146:167:2723:08
7:27
0:00
15K
9.32 mi11:36:541:09:097:2522:53
7:22
-0:05
20K
12.43 mi12:00:371:32:527:2823:43
7:38
+0:16
Half
13.11 mi12:05:511:38:067:295:14
7:40
+0:02
25K
15.53 mi12:26:031:58:187:3720:12
8:20
+0:40
30K
18.64 mi12:54:132:26:287:5128:10
9:04
+0:44
20M
20.00 mi13:05:542:38:097:5411:41
8:36
-0:28
21M
21.00 mi13:15:312:47:467:599:37
9:37
+1:01
35K
21.75 mi13:21:332:53:487:596:02
8:04
-1:33
23M
23.00 mi13:31:553:04:108:0010:22
8:17
+0:13
24M
24.00 mi13:40:053:12:208:018:10
8:10
-0:07
40K
24.85 mi13:47:113:19:268:017:06
8:18
+0:08
25.2M
25.20 mi13:50:173:22:328:023:06
8:59
+0:41
Finish
26.22 mi13:59:433:31:588:059:26
9:15
+0:16

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

7:22 /mi

Average Pace

8:05 /mi

Slowest Pace

9:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:38:06

46% of race

Time at Steady Pace

1:03:33

30% of race

Time at Slower Pace

50:19

24% of race

Average Pace: 8:05 /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 mi10:50:5323:087:2723:08
7:27
#9218
10K
6.21 mi11:14:0146:167:2723:08
7:27
#9557
15K
9.32 mi11:36:541:09:097:2522:53
7:22
#9352
20K
12.43 mi12:00:371:32:527:2823:43
7:38
#9600
Half
13.11 mi12:05:511:38:067:295:14
7:40
#9694
25K
15.53 mi12:26:031:58:187:3720:12
8:20
#10618
30K
18.64 mi12:54:132:26:287:5128:10
9:04
#12099
20M
20.00 mi13:05:542:38:097:5411:41
8:36
#12273
21M
21.00 mi13:15:312:47:467:599:37
9:37
#12574
35K
21.75 mi13:21:332:53:487:596:02
8:04
#12563
23M
23.00 mi13:31:553:04:108:0010:22
8:17
#12497
24M
24.00 mi13:40:053:12:208:018:10
8:10
#12481
40K
24.85 mi13:47:113:19:268:017:06
8:18
#12481
25.2M
25.20 mi13:50:173:22:328:023:06
8:59
#12477
Finish
26.22 mi13:59:433:31:588:059:26
9:15
#12798
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9218149014909077(Top 34%)1483(Top 13%)1483(Top 30%)
10K6.21 mi3.10 mi9557-3391638-1481638-14810052(Top 38%)1854(Top 16%)1854(Top 38%)
15K9.32 mi3.11 mi9352+2051561+771561+779077(Top 34%)1483(Top 13%)1483(Top 30%)
20K12.43 mi3.11 mi9600-2481670-1091670-10910385(Top 39%)2094(Top 18%)2094(Top 43%)
Half13.11 mi0.68 mi9694-941705-351705-3511741(Top 44%)2785(Top 24%)2785(Top 57%)
25K15.53 mi2.42 mi10618-9242158-4532158-45315144(Top 57%)4931(Top 43%)4931(Top 101%)
30K18.64 mi3.11 mi12099-14813031-8733031-87317514(Top 66%)6363(Top 56%)6363(Top 130%)
20M20.00 mi1.36 mi12273-1743144-1133144-11314243(Top 54%)4555(Top 40%)4555(Top 93%)
21M21.00 mi1.00 mi12574-3013340-1963340-19616503(Top 62%)5907(Top 52%)5907(Top 121%)
35K21.75 mi0.75 mi12563+113345-53345-512601(Top 47%)3762(Top 33%)3762(Top 77%)
23M23.00 mi1.25 mi12497+663327+183327+1811772(Top 44%)3394(Top 30%)3394(Top 69%)
24M24.00 mi1.00 mi12481+163341-143341-1412402(Top 47%)3799(Top 33%)3799(Top 78%)
40K24.85 mi0.85 mi124813365-243365-2412103(Top 45%)3728(Top 33%)3728(Top 76%)
25.2M25.20 mi0.35 mi12477+43373-83373-812518(Top 47%)3977(Top 35%)3977(Top 81%)
Finish26.22 mi1.02 mi12798-3213583-2103583-21019181(Top 72%)7535(Top 66%)7535(Top 154%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21story building
+97ft-345ft

Overall

9077

Females

1483

F18-39

1483

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

10052

Females

1854

F18-39

1854

10K→15K

6.2 - 9.3 mi

Top 34%
×3story building
+67ft-78ft

Overall

9077

Females

1483

F18-39

1483

15K→20K

9.3 - 12.4 mi

Top 39%
×5story building
+106ft-86ft

Overall

10385

Females

2094

F18-39

2094

20K→Half

12.4 - 13.1 mi

Top 44%
×2story building
+19ft-37ft

Overall

11741

Females

2785

F18-39

2785

Half→25K

13.1 - 15.5 mi

Top 57%
×4story building
+66ft-88ft

Overall

15144

Females

4931

F18-39

4931

25K→30K

15.5 - 18.6 mi

Top 66%
×9story building
+181ft-148ft

Overall

17514

Females

6363

F18-39

6363

30K→20M

18.6 - 20.0 mi

Top 54%
×5story building
+64ft-50ft

Overall

14243

Females

4555

F18-39

4555

20M→21M

20.0 - 21.0 mi

Top 62%
×8story building
+106ft-24ft

Overall

16503

Females

5907

F18-39

5907

21M→35K

21.0 - 21.8 mi

Top 47%
×7story building
+17ft-86ft

Overall

12601

Females

3762

F18-39

3762

35K→23M

21.8 - 23.0 mi

Top 44%
×5story building
+23ft-63ft

Overall

11772

Females

3394

F18-39

3394

23M→24M

23.0 - 24.0 mi

Top 47%
×6story building
+12ft-82ft

Overall

12402

Females

3799

F18-39

3799

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

12103

Females

3728

F18-39

3728

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1story
+13ft-16ft

Overall

12518

Females

3977

F18-39

3977

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2story building
+22ft-21ft

Overall

19181

Females

7535

F18-39

7535

Passing Analysis

Category:
Athletes Passed
980
Passed By
4558
Net Change
-3580
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9218
5K → 10K155494-339#9218#9557
10K → 15K27570+205#9557#9352
15K → 20K71319-248#9352#9600
20K → Half6100-94#9600#9694
Half → 25K17939-924#9694#10618
25K → 30K151496-1481#10618#12099
30K → 20M54228-174#12099#12273
20M → 21M33334-301#12273#12574
21M → 35K6150+11#12574#12563
35K → 23M11448+66#12563#12497
23M → 24M7256+16#12497#12481
24M → 40K60600#12481#12481
40K → 25.2M3329+4#12481#12477
25.2M → Finish14335-321#12477#12798
TOTALS9804558-3580
📊

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