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BOSTON MARATHON 2023

Mallory Walsh

Bib: 26369•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
10:23/mi
32:17
↑ 97↓ 3451.5%
10K· 6.21 mi
11:00/mi
1:06:26
↑ 79↓ 1380.4%
15K· 9.32 mi
10:17/mi
1:38:24
↑ 67↓ 78
20K· 12.43 mi
10:26/mi
2:10:48
↑ 106↓ 860.1%
Half· 13.11 mi
10:13/mi
2:17:46
↑ 19↓ 370.5%
25K· 15.53 mi
10:41/mi
2:43:41
↑ 66↓ 880.2%
30K· 18.64 mi
12:33/mi
3:22:39
↑ 181↓ 1480.2%
20M
11:37/mi
3:38:26
↑ 64↓ 500.2%
21M
13:25/mi
3:51:51
↑ 106↓ 241.6%
35K· 21.75 mi
12:31/mi
4:01:13
↑ 17↓ 861.7%
23M
12:53/mi
4:17:21
↑ 23↓ 630.6%
24M
13:09/mi
4:30:30
↓ 821.3%
40K· 24.85 mi
13:01/mi
4:41:38
↓ 200.3%
25.2M
14:42/mi
4:46:42
↑ 13↓ 160.2%
Finish· 26.22 mi
11:21/mi
4:58:16
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:17:46
Pace10:31 /mi
2nd Half
Distance13.11 mi
Time2:40:30
Pace12:15 /mi
📊Positive Split: 16.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:2532:1710:2332:17
10:23
-
10K
6.21 mi12:27:341:06:2610:4134:09
11:00
+0:37
15K
9.32 mi12:59:321:38:2410:3331:58
10:17
-0:43
20K
12.43 mi13:31:562:10:4810:3232:24
10:26
+0:09
Half
13.11 mi13:38:542:17:4610:316:58
10:13
-0:13
25K
15.53 mi14:04:492:43:4110:3225:55
10:41
+0:28
30K
18.64 mi14:43:473:22:3910:5238:58
12:33
+1:52
20M
20.00 mi14:59:343:38:2610:5515:47
11:37
-0:56
21M
21.00 mi15:12:593:51:5111:0213:25
13:25
+1:48
35K
21.75 mi15:22:214:01:1311:059:22
12:31
-0:54
23M
23.00 mi15:38:294:17:2111:1116:08
12:53
+0:22
24M
24.00 mi15:51:384:30:3011:1613:09
13:09
+0:16
40K
24.85 mi16:02:464:41:3811:2011:08
13:01
-0:08
25.2M
25.20 mi16:07:504:46:4211:235:04
14:42
+1:41
Finish
26.22 mi16:19:244:58:1611:2311:34
11:21
-3:21

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

10:13 /mi

Average Pace

11:23 /mi

Slowest Pace

14:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:09:32

43% of race

Time at Steady Pace

1:01:30

21% of race

Time at Slower Pace

1:47:14

36% of race

Average Pace: 11:23 /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 mi11:53:2532:1710:2332:17
10:23
#24457
10K
6.21 mi12:27:341:06:2610:4134:09
11:00
#25076
15K
9.32 mi12:59:321:38:2410:3331:58
10:17
#24736
20K
12.43 mi13:31:562:10:4810:3232:24
10:26
#24465
Half
13.11 mi13:38:542:17:4610:316:58
10:13
#24422
25K
15.53 mi14:04:492:43:4110:3225:55
10:41
#24250
30K
18.64 mi14:43:473:22:3910:5238:58
12:33
#24480
20M
20.00 mi14:59:343:38:2610:5515:47
11:37
#24412
21M
21.00 mi15:12:593:51:5111:0213:25
13:25
#24432
35K
21.75 mi15:22:214:01:1311:059:22
12:31
#24471
23M
23.00 mi15:38:294:17:2111:1116:08
12:53
#24531
24M
24.00 mi15:51:384:30:3011:1613:09
13:09
#24614
40K
24.85 mi16:02:464:41:3811:2011:08
13:01
#24654
25.2M
25.20 mi16:07:504:46:4211:235:04
14:42
#24696
Finish
26.22 mi16:19:244:58:1611:2311:34
11:21
#24721
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi24457101321013224077(Top 90%)9935(Top 87%)9935(Top 203%)
10K6.21 mi3.10 mi25076-61910478-34610478-34625463(Top 96%)10708(Top 94%)10708(Top 219%)
15K9.32 mi3.11 mi24736+34010298+18010298+18024077(Top 90%)9935(Top 87%)9935(Top 203%)
20K12.43 mi3.11 mi24465+27110153+14510153+14523715(Top 89%)9753(Top 85%)9753(Top 200%)
Half13.11 mi0.68 mi24422+4310131+2210131+2223711(Top 89%)9753(Top 85%)9753(Top 200%)
25K15.53 mi2.42 mi24250+17210048+8310048+8323503(Top 88%)9674(Top 85%)9674(Top 198%)
30K18.64 mi3.11 mi24480-23010191-14310191-14325040(Top 94%)10586(Top 93%)10586(Top 217%)
20M20.00 mi1.36 mi24412+6810163+2810163+2823699(Top 89%)9901(Top 87%)9901(Top 203%)
21M21.00 mi1.00 mi24432-2010183-2010183-2024507(Top 92%)10347(Top 91%)10347(Top 212%)
35K21.75 mi0.75 mi24471-3910205-2210205-2225202(Top 95%)10759(Top 94%)10759(Top 220%)
23M23.00 mi1.25 mi24531-6010249-4410249-4424976(Top 94%)10623(Top 93%)10623(Top 218%)
24M24.00 mi1.00 mi24614-8310304-5510304-5525589(Top 96%)10970(Top 96%)10970(Top 225%)
40K24.85 mi0.85 mi24654-4010340-3610340-3624954(Top 94%)10652(Top 93%)10652(Top 218%)
25.2M25.20 mi0.35 mi24696-4210364-2410364-2425525(Top 96%)10939(Top 96%)10939(Top 224%)
Finish26.22 mi1.02 mi24721-2510383-1910383-1924496(Top 92%)10403(Top 91%)10403(Top 213%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21story building
+97ft-345ft

Overall

24077

Females

9935

F18-39

9935

5K→10K

3.1 - 6.2 mi

Top 96%
×5story building
+79ft-138ft

Overall

25463

Females

10708

F18-39

10708

10K→15K

6.2 - 9.3 mi

Top 90%
×3story building
+67ft-78ft

Overall

24077

Females

9935

F18-39

9935

15K→20K

9.3 - 12.4 mi

Top 89%
×5story building
+106ft-86ft

Overall

23715

Females

9753

F18-39

9753

20K→Half

12.4 - 13.1 mi

Top 89%
×2story building
+19ft-37ft

Overall

23711

Females

9753

F18-39

9753

Half→25K

13.1 - 15.5 mi

Top 88%
×4story building
+66ft-88ft

Overall

23503

Females

9674

F18-39

9674

25K→30K

15.5 - 18.6 mi

Top 94%
×9story building
+181ft-148ft

Overall

25040

Females

10586

F18-39

10586

30K→20M

18.6 - 20.0 mi

Top 89%
×5story building
+64ft-50ft

Overall

23699

Females

9901

F18-39

9901

20M→21M

20.0 - 21.0 mi

Top 92%
×8story building
+106ft-24ft

Overall

24507

Females

10347

F18-39

10347

21M→35K

21.0 - 21.8 mi

Top 95%
×7story building
+17ft-86ft

Overall

25202

Females

10759

F18-39

10759

35K→23M

21.8 - 23.0 mi

Top 94%
×5story building
+23ft-63ft

Overall

24976

Females

10623

F18-39

10623

23M→24M

23.0 - 24.0 mi

Top 96%
×6story building
+12ft-82ft

Overall

25589

Females

10970

F18-39

10970

24M→40K

24.0 - 24.9 mi

Top 94%
×1story
+6ft-20ft

Overall

24954

Females

10652

F18-39

10652

40K→25.2M

24.9 - 25.2 mi

Top 96%
×1story
+13ft-16ft

Overall

25525

Females

10939

F18-39

10939

25.2M→Finish

25.2 - 26.2 mi

Top 92%
×2story building
+22ft-21ft

Overall

24496

Females

10403

F18-39

10403

Passing Analysis

Category:
Athletes Passed
1144
Passed By
1408
Net Change
-264
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24457
5K → 10K31650-619#24457#25076
10K → 15K35515+340#25076#24736
15K → 20K28110+271#24736#24465
20K → Half452+43#24465#24422
Half → 25K18816+172#24422#24250
25K → 30K50280-230#24250#24480
30K → 20M8416+68#24480#24412
20M → 21M3454-20#24412#24432
21M → 35K1453-39#24432#24471
35K → 23M2080-60#24471#24531
23M → 24M1295-83#24531#24614
24M → 40K1555-40#24614#24654
40K → 25.2M143-42#24654#24696
25.2M → Finish1439-25#24696#24721
TOTALS11441408-264
📊

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