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BOSTON MARATHON 2023

Shannon Brown

Bib: 25380•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
10:58/mi
34:04
↑ 97↓ 3451.5%
10K· 6.21 mi
10:25/mi
1:06:27
↑ 79↓ 1380.4%
15K· 9.32 mi
10:29/mi
1:39:02
↑ 67↓ 78
20K· 12.43 mi
12:49/mi
2:18:52
↑ 106↓ 860.1%
Half· 13.11 mi
12:14/mi
2:27:13
↑ 19↓ 370.5%
25K· 15.53 mi
14:28/mi
3:02:17
↑ 66↓ 880.2%
30K· 18.64 mi
13:59/mi
3:45:44
↑ 181↓ 1480.2%
20M
15:27/mi
4:06:44
↑ 64↓ 500.2%
21M
16:28/mi
4:23:12
↑ 106↓ 241.6%
35K· 21.75 mi
12:39/mi
4:32:40
↑ 17↓ 861.7%
23M
15:18/mi
4:51:50
↑ 23↓ 630.6%
24M
14:06/mi
5:05:56
↓ 821.3%
40K· 24.85 mi
15:11/mi
5:18:55
↓ 200.3%
25.2M
18:39/mi
5:25:21
↑ 13↓ 160.2%
Finish· 26.22 mi
13:14/mi
5:38:50
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:27:13
Pace11:14 /mi
2nd Half
Distance13.11 mi
Time3:11:37
Pace14:37 /mi
📊Positive Split: 30.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:2334:0410:5834:04
10:58
-
10K
6.21 mi12:22:461:06:2710:4232:23
10:25
-0:33
15K
9.32 mi12:55:211:39:0210:3832:35
10:29
+0:04
20K
12.43 mi13:35:112:18:5211:1039:50
12:49
+2:20
Half
13.11 mi13:43:322:27:1311:148:21
12:14
-0:35
25K
15.53 mi14:18:363:02:1711:4435:04
14:28
+2:14
30K
18.64 mi15:02:033:45:4412:0743:27
13:59
-0:29
20M
20.00 mi15:23:034:06:4412:2021:00
15:27
+1:28
21M
21.00 mi15:39:314:23:1212:3216:28
16:28
+1:01
35K
21.75 mi15:48:594:32:4012:329:28
12:39
-3:49
23M
23.00 mi16:08:094:51:5012:4119:10
15:18
+2:39
24M
24.00 mi16:22:155:05:5612:4514:06
14:06
-1:12
40K
24.85 mi16:35:145:18:5512:5012:59
15:11
+1:05
25.2M
25.20 mi16:41:405:25:2112:556:26
18:39
+3:28
Finish
26.22 mi16:55:095:38:5012:5613:29
13:14
-5:25

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

10:25 /mi

Average Pace

12:56 /mi

Slowest Pace

18:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:36:41

46% of race

Time at Steady Pace

1:46:06

31% of race

Time at Slower Pace

1:16:03

22% of race

Average Pace: 12:55 /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 mi11:50:2334:0410:5834:04
10:58
#25634
10K
6.21 mi12:22:461:06:2710:4232:23
10:25
#25083
15K
9.32 mi12:55:211:39:0210:3832:35
10:29
#24850
20K
12.43 mi13:35:112:18:5211:1039:50
12:49
#25451
Half
13.11 mi13:43:322:27:1311:148:21
12:14
#25495
25K
15.53 mi14:18:363:02:1711:4435:04
14:28
#25819
30K
18.64 mi15:02:033:45:4412:0743:27
13:59
#25874
20M
20.00 mi15:23:034:06:4412:2021:00
15:27
#25968
21M
21.00 mi15:39:314:23:1212:3216:28
16:28
#25998
35K
21.75 mi15:48:594:32:4012:329:28
12:39
#25976
23M
23.00 mi16:08:094:51:5012:4119:10
15:18
#26021
24M
24.00 mi16:22:155:05:5612:4514:06
14:06
#26047
40K
24.85 mi16:35:145:18:5512:5012:59
15:11
#26072
25.2M
25.20 mi16:41:405:25:2112:556:26
18:39
#26103
Finish
26.22 mi16:55:095:38:5012:5613:29
13:14
#26108
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25634108091080924439(Top 92%)10147(Top 89%)10147(Top 208%)
10K6.21 mi3.10 mi25083+55110484+32510484+32524549(Top 92%)10198(Top 89%)10198(Top 209%)
15K9.32 mi3.11 mi24850+23310362+12210362+12224439(Top 92%)10147(Top 89%)10147(Top 208%)
20K12.43 mi3.11 mi25451-60110718-35610718-35626151(Top 98%)11140(Top 98%)11140(Top 228%)
Half13.11 mi0.68 mi25495-4410747-2910747-2926030(Top 98%)11076(Top 97%)11076(Top 227%)
25K15.53 mi2.42 mi25819-32410939-19210939-19226468(Top 99%)11340(Top 99%)11340(Top 232%)
30K18.64 mi3.11 mi25874-5510977-3810977-3826027(Top 98%)11113(Top 97%)11113(Top 228%)
20M20.00 mi1.36 mi25968-9411037-6011037-6026411(Top 99%)11327(Top 99%)11327(Top 232%)
21M21.00 mi1.00 mi25998-3011055-1811055-1826338(Top 99%)11288(Top 99%)11288(Top 231%)
35K21.75 mi0.75 mi25976+2211048+711048+725318(Top 95%)10826(Top 95%)10826(Top 222%)
23M23.00 mi1.25 mi26021-4511077-2911077-2926363(Top 99%)11312(Top 99%)11312(Top 232%)
24M24.00 mi1.00 mi26047-2611098-2111098-2126115(Top 98%)11217(Top 98%)11217(Top 230%)
40K24.85 mi0.85 mi26072-2511116-1811116-1826225(Top 99%)11274(Top 99%)11274(Top 231%)
25.2M25.20 mi0.35 mi26103-3111138-2211138-2226549(Top 100%)11396(Top 100%)11396(Top 233%)
Finish26.22 mi1.02 mi26108-511139-111139-126085(Top 98%)11209(Top 98%)11209(Top 230%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 92%
×21story building
+97ft-345ft

Overall

24439

Females

10147

F18-39

10147

5K→10K

3.1 - 6.2 mi

Top 92%
×5story building
+79ft-138ft

Overall

24549

Females

10198

F18-39

10198

10K→15K

6.2 - 9.3 mi

Top 92%
×3story building
+67ft-78ft

Overall

24439

Females

10147

F18-39

10147

15K→20K

9.3 - 12.4 mi

Top 98%
×5story building
+106ft-86ft

Overall

26151

Females

11140

F18-39

11140

20K→Half

12.4 - 13.1 mi

Top 98%
×2story building
+19ft-37ft

Overall

26030

Females

11076

F18-39

11076

Half→25K

13.1 - 15.5 mi

Top 99%
×4story building
+66ft-88ft

Overall

26468

Females

11340

F18-39

11340

25K→30K

15.5 - 18.6 mi

Top 98%
×9story building
+181ft-148ft

Overall

26027

Females

11113

F18-39

11113

30K→20M

18.6 - 20.0 mi

Top 99%
×5story building
+64ft-50ft

Overall

26411

Females

11327

F18-39

11327

20M→21M

20.0 - 21.0 mi

Top 99%
×8story building
+106ft-24ft

Overall

26338

Females

11288

F18-39

11288

21M→35K

21.0 - 21.8 mi

Top 95%
×7story building
+17ft-86ft

Overall

25318

Females

10826

F18-39

10826

35K→23M

21.8 - 23.0 mi

Top 99%
×5story building
+23ft-63ft

Overall

26363

Females

11312

F18-39

11312

23M→24M

23.0 - 24.0 mi

Top 98%
×6story building
+12ft-82ft

Overall

26115

Females

11217

F18-39

11217

24M→40K

24.0 - 24.9 mi

Top 99%
×1story
+6ft-20ft

Overall

26225

Females

11274

F18-39

11274

40K→25.2M

24.9 - 25.2 mi

Top 100%
×1story
+13ft-16ft

Overall

26549

Females

11396

F18-39

11396

25.2M→Finish

25.2 - 26.2 mi

Top 98%
×2story building
+22ft-21ft

Overall

26085

Females

11209

F18-39

11209

Passing Analysis

Category:
Athletes Passed
939
Passed By
1413
Net Change
-474
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25634
5K → 10K56716+551#25634#25083
10K → 15K26431+233#25083#24850
15K → 20K8609-601#24850#25451
20K → Half246-44#25451#25495
Half → 25K4328-324#25495#25819
25K → 30K2883-55#25819#25874
30K → 20M7101-94#25874#25968
20M → 21M636-30#25968#25998
21M → 35K275+22#25998#25976
35K → 23M348-45#25976#26021
23M → 24M733-26#26021#26047
24M → 40K833-25#26047#26072
40K → 25.2M132-31#26072#26103
25.2M → Finish712-5#26103#26108
TOTALS9391413-474
📊

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