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BOSTON MARATHON 2023

Molly Rouillard

MA

Bib: 15102 F

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

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:25/mi
26:08
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:21/mi
52:03
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:13/mi
1:17:34
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:09/mi
1:42:54
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:52/mi
1:48:16
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:23/mi
2:08:35
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:18/mi
2:34:22
↑ 181↓ 1480.2%
138 ft elev
20M
8:19/mi
2:45:40
↑ 64↓ 500.2%
148 ft elev
21M
8:26/mi
2:54:06
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:53/mi
3:00:00
↑ 17↓ 861.7%
156 ft elev
23M
7:58/mi
3:09:58
↑ 23↓ 630.6%
116 ft elev
24M
7:39/mi
3:17:37
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:40/mi
3:24:10
↓ 200.3%
20 ft elev
25.2M
8:13/mi
3:27:00
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:20/mi
3:34:28
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:48:168:16 /mi+1.9%
2nd Half
1:46:128:06 /mi✓ faster
Negative split — 1.9% faster in the second half
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Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:5226:088:2526:08
8:25
-
10K
6.21 mi11:22:4752:038:2325:55
8:21
-0:04
15K
9.32 mi11:48:181:17:348:1925:31
8:13
-0:08
20K
12.43 mi12:13:381:42:548:1725:20
8:09
-0:04
Half
13.11 mi12:19:001:48:168:165:22
7:52
-0:17
25K
15.53 mi12:39:192:08:358:1720:19
8:23
+0:31
30K
18.64 mi13:05:062:34:228:1725:47
8:18
-0:05
20M
20.00 mi13:16:242:45:408:1711:18
8:19
+0:01
21M
21.00 mi13:24:502:54:068:178:26
8:26
+0:07
35K
21.75 mi13:30:443:00:008:175:54
7:53
-0:33
23M
23.00 mi13:40:423:09:588:169:58
7:58
+0:05
24M
24.00 mi13:48:213:17:378:147:39
7:39
-0:19
40K
24.85 mi13:54:543:24:108:136:33
7:40
+0:01
25.2M
25.20 mi13:57:443:27:008:132:50
8:13
+0:33
Finish
26.22 mi14:05:123:34:288:117:28
7:20
-0:53

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

8:11 /mi

Slowest Pace

8:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

42:54

20% of race

Time at Steady Pace

2:51:34

80% 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 mi10:56:5226:088:2526:08
8:25
#16967
10K
6.21 mi11:22:4752:038:2325:55
8:21
#17037
15K
9.32 mi11:48:181:17:348:1925:31
8:13
#16677
20K
12.43 mi12:13:381:42:548:1725:20
8:09
#16124
Half
13.11 mi12:19:001:48:168:165:22
7:52
#15975
25K
15.53 mi12:39:192:08:358:1720:19
8:23
#15875
30K
18.64 mi13:05:062:34:228:1725:47
8:18
#15340
20M
20.00 mi13:16:242:45:408:1711:18
8:19
#15119
21M
21.00 mi13:24:502:54:068:178:26
8:26
#14822
35K
21.75 mi13:30:443:00:008:175:54
7:53
#14695
23M
23.00 mi13:40:423:09:588:169:58
7:58
#14401
24M
24.00 mi13:48:213:17:378:147:39
7:39
#14124
40K
24.85 mi13:54:543:24:108:136:33
7:40
#13861
25.2M
25.20 mi13:57:443:27:008:132:50
8:13
#13766
Finish
26.22 mi14:05:123:34:288:117:28
7:20
#13494
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi16967590659061595152645264
10K6.21 mi3.10 mi17037-705938-325938-321719659945994
15K9.32 mi3.11 mi16677+3605714+2245714+2241595152645264
20K12.43 mi3.11 mi16124+5535381+3335381+3331463344844484
Half13.11 mi0.68 mi15975+1495291+905291+901338737363736
25K15.53 mi2.42 mi15875+1005256+355256+351544851035103
30K18.64 mi3.11 mi15340+5354973+2834973+2831303337803780
20M20.00 mi1.36 mi15119+2214848+1254848+1251247535683568
21M21.00 mi1.00 mi14822+2974676+1724676+1721011724502450
35K21.75 mi0.75 mi14695+1274619+574619+571136830753075
23M23.00 mi1.25 mi14401+2944474+1454474+145952122862286
24M24.00 mi1.00 mi14124+2774323+1514323+151880820202020
40K24.85 mi0.85 mi13861+2634187+1364187+136776916761676
25.2M25.20 mi0.35 mi13766+954134+534134+53790618181818
Finish26.22 mi1.02 mi13494+2723989+1453989+145735415781578

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21story building
+97ft-345ft

Overall

15951

Females

5264

F18-39

5264

5K→10K

3.1 - 6.2 mi

Top 65%
×5story building
+79ft-138ft

Overall

17196

Females

5994

F18-39

5994

10K→15K

6.2 - 9.3 mi

Top 60%
×3story building
+67ft-78ft

Overall

15951

Females

5264

F18-39

5264

15K→20K

9.3 - 12.4 mi

Top 55%
×5story building
+106ft-86ft

Overall

14633

Females

4484

F18-39

4484

20K→Half

12.4 - 13.1 mi

Top 50%
×2story building
+19ft-37ft

Overall

13387

Females

3736

F18-39

3736

Half→25K

13.1 - 15.5 mi

Top 58%
×4story building
+66ft-88ft

Overall

15448

Females

5103

F18-39

5103

25K→30K

15.5 - 18.6 mi

Top 49%
×9story building
+181ft-148ft

Overall

13033

Females

3780

F18-39

3780

30K→20M

18.6 - 20.0 mi

Top 47%
×5story building
+64ft-50ft

Overall

12475

Females

3568

F18-39

3568

20M→21M

20.0 - 21.0 mi

Top 38%
×8story building
+106ft-24ft

Overall

10117

Females

2450

F18-39

2450

21M→35K

21.0 - 21.8 mi

Top 43%
×7story building
+17ft-86ft

Overall

11368

Females

3075

F18-39

3075

35K→23M

21.8 - 23.0 mi

Top 36%
×5story building
+23ft-63ft

Overall

9521

Females

2286

F18-39

2286

23M→24M

23.0 - 24.0 mi

Top 33%
×6story building
+12ft-82ft

Overall

8808

Females

2020

F18-39

2020

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

7769

Females

1676

F18-39

1676

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

7906

Females

1818

F18-39

1818

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2story building
+22ft-21ft

Overall

7354

Females

1578

F18-39

1578

Passing Analysis

Category:
Athletes Passed
4032
Passed By
559
Net Change
+3473
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16967
5K → 10K279349-70#16967#17037
10K → 15K44080+360#17037#16677
15K → 20K56411+553#16677#16124
20K → Half1490+149#16124#15975
Half → 25K19090+100#15975#15875
25K → 30K54510+535#15875#15340
30K → 20M2309+221#15340#15119
20M → 21M2970+297#15119#14822
21M → 35K1325+127#14822#14695
35K → 23M2962+294#14695#14401
23M → 24M2781+277#14401#14124
24M → 40K2641+263#14124#13861
40K → 25.2M961+95#13861#13766
25.2M → Finish2720+272#13766#13494
TOTALS4032559+3473

Passing Charts

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