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BOSTON MARATHON 2023

Sarah Swenson

Bib: 25702•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

Start
0:00:00
Race begins
5K· 3.11 mi
32:29
Rank: #24595
Start → 5K
32:29 | 10:27/mi
10K· 6.21 mi
1:04:11
Rank: #24330 (+265)
5K → 10K
31:42 | 10:12/mi
15K· 9.32 mi
1:35:53
Rank: #24195 (+135)
10K → 15K
31:42 | 10:12/mi
20K· 12.43 mi
2:08:54
Rank: #24164 (+31)
15K → 20K
33:01 | 10:38/mi
Half· 13.11 mi
2:15:58
Rank: #24147 (+17)
20K → Half
7:04 | 10:21/mi
25K· 15.53 mi
2:42:06
Rank: #24055 (+92)
Half → 25K
26:08 | 10:47/mi
30K· 18.64 mi
3:17:31
Rank: #23987 (+68)
25K → 30K
35:25 | 11:24/mi
20M
3:32:09
Rank: #23865 (+122)
30K → 20M
14:38 | 10:46/mi
21M
3:43:23
Rank: #23731 (+134)
20M → 21M
11:14 | 11:14/mi
35K· 21.75 mi
3:53:02
Rank: #23854 (-123)
21M → 35K
9:39 | 12:54/mi
23M
4:06:48
Rank: #23786 (+68)
35K → 23M
13:46 | 11:00/mi
24M
4:17:24
Rank: #23734 (+52)
23M → 24M
10:36 | 10:36/mi
40K· 24.85 mi
4:26:37
Rank: #23671 (+63)
24M → 40K
9:13 | 10:47/mi
25.2M
4:30:23
Rank: #23631 (+40)
40K → 25.2M
3:46 | 10:55/mi
Finish· 26.22 mi
4:40:08
Rank: #23552 (+79)
25.2M → Finish
9:45 | 9:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:15:58
Pace10:22 /mi
2nd Half
Distance13.11 mi
Time2:24:10
Pace11:00 /mi
📊Positive Split: 6.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:3032:2910:2732:29
10:27
-
10K
6.21 mi12:26:121:04:1110:2031:42
10:12
-0:15
15K
9.32 mi12:57:541:35:5310:1731:42
10:12
0:00
20K
12.43 mi13:30:552:08:5410:2233:01
10:38
+0:26
Half
13.11 mi13:37:592:15:5810:227:04
10:21
-0:17
25K
15.53 mi14:04:072:42:0610:2626:08
10:47
+0:26
30K
18.64 mi14:39:323:17:3110:3635:25
11:24
+0:37
20M
20.00 mi14:54:103:32:0910:3614:38
10:46
-0:38
21M
21.00 mi15:05:243:43:2310:3811:14
11:14
+0:28
35K
21.75 mi15:15:033:53:0210:439:39
12:54
+1:40
23M
23.00 mi15:28:494:06:4810:4413:46
11:00
-1:54
24M
24.00 mi15:39:254:17:2410:4410:36
10:36
-0:24
40K
24.85 mi15:48:384:26:3710:449:13
10:47
+0:11
25.2M
25.20 mi15:52:244:30:2310:443:46
10:55
+0:08
Finish
26.22 mi16:02:094:40:0810:429:45
9:34
-1:21

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

9:34 /mi

Average Pace

10:42 /mi

Slowest Pace

12:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:20:13

29% of race

Time at Steady Pace

2:23:37

51% of race

Time at Slower Pace

56:18

20% of race

Average Pace: 10:41 /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 mi11:54:3032:2910:2732:29
10:27
#24595
10K
6.21 mi12:26:121:04:1110:2031:42
10:12
#24330
15K
9.32 mi12:57:541:35:5310:1731:42
10:12
#24195
20K
12.43 mi13:30:552:08:5410:2233:01
10:38
#24164
Half
13.11 mi13:37:592:15:5810:227:04
10:21
#24147
25K
15.53 mi14:04:072:42:0610:2626:08
10:47
#24055
30K
18.64 mi14:39:323:17:3110:3635:25
11:24
#23987
20M
20.00 mi14:54:103:32:0910:3614:38
10:46
#23865
21M
21.00 mi15:05:243:43:2310:3811:14
11:14
#23731
35K
21.75 mi15:15:033:53:0210:439:39
12:54
#23854
23M
23.00 mi15:28:494:06:4810:4413:46
11:00
#23786
24M
24.00 mi15:39:254:17:2410:4410:36
10:36
#23734
40K
24.85 mi15:48:384:26:3710:449:13
10:47
#23671
25.2M
25.20 mi15:52:244:30:2310:443:46
10:55
#23631
Finish
26.22 mi16:02:094:40:0810:429:45
9:34
#23552
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi24595102131021323893(Top 90%)9836(Top 86%)9836(Top 201%)
10K6.21 mi3.10 mi24330+26510068+14510068+14524145(Top 91%)9967(Top 87%)9967(Top 204%)
15K9.32 mi3.11 mi24195+1359999+699999+6923893(Top 90%)9836(Top 86%)9836(Top 201%)
20K12.43 mi3.11 mi24164+319981+189981+1824061(Top 90%)9944(Top 87%)9944(Top 204%)
Half13.11 mi0.68 mi24147+179980+19980+123942(Top 90%)9878(Top 86%)9878(Top 202%)
25K15.53 mi2.42 mi24055+929934+469934+4623643(Top 89%)9756(Top 85%)9756(Top 200%)
30K18.64 mi3.11 mi23987+689909+259909+2523722(Top 89%)9850(Top 86%)9850(Top 202%)
20M20.00 mi1.36 mi23865+1229852+579852+5722296(Top 84%)9139(Top 80%)9139(Top 187%)
21M21.00 mi1.00 mi23731+1349787+659787+6521355(Top 80%)8659(Top 76%)8659(Top 177%)
35K21.75 mi0.75 mi23854-1239864-779864-7725494(Top 96%)10899(Top 95%)10899(Top 223%)
23M23.00 mi1.25 mi23786+689834+309834+3022343(Top 84%)9243(Top 81%)9243(Top 189%)
24M24.00 mi1.00 mi23734+529817+179817+1722245(Top 84%)9239(Top 81%)9239(Top 189%)
40K24.85 mi0.85 mi23671+639787+309787+3021914(Top 82%)9108(Top 80%)9108(Top 186%)
25.2M25.20 mi0.35 mi23631+409767+209767+2020334(Top 76%)8247(Top 72%)8247(Top 169%)
Finish26.22 mi1.02 mi23552+799740+279740+2720386(Top 77%)8243(Top 72%)8243(Top 169%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21stories
+97ft-345ft

Overall

23893

Females

9836

F18-39

9836

5K→10K

3.1 - 6.2 mi

Top 91%
×5stories
+79ft-138ft

Overall

24145

Females

9967

F18-39

9967

10K→15K

6.2 - 9.3 mi

Top 90%
×3stories
+67ft-78ft

Overall

23893

Females

9836

F18-39

9836

15K→20K

9.3 - 12.4 mi

Top 90%
×5stories
+106ft-86ft

Overall

24061

Females

9944

F18-39

9944

20K→Half

12.4 - 13.1 mi

Top 90%
×2stories
+19ft-37ft

Overall

23942

Females

9878

F18-39

9878

Half→25K

13.1 - 15.5 mi

Top 89%
×4stories
+66ft-88ft

Overall

23643

Females

9756

F18-39

9756

25K→30K

15.5 - 18.6 mi

Top 89%
×9stories
+181ft-148ft

Overall

23722

Females

9850

F18-39

9850

30K→20M

18.6 - 20.0 mi

Top 84%
×5stories
+64ft-50ft

Overall

22296

Females

9139

F18-39

9139

20M→21M

20.0 - 21.0 mi

Top 80%
×8stories
+106ft-24ft

Overall

21355

Females

8659

F18-39

8659

21M→35K

21.0 - 21.8 mi

Top 96%
×7stories
+17ft-86ft

Overall

25494

Females

10899

F18-39

10899

35K→23M

21.8 - 23.0 mi

Top 84%
×5stories
+23ft-63ft

Overall

22343

Females

9243

F18-39

9243

23M→24M

23.0 - 24.0 mi

Top 84%
×6stories
+12ft-82ft

Overall

22245

Females

9239

F18-39

9239

24M→40K

24.0 - 24.9 mi

Top 82%
×1story
+6ft-20ft

Overall

21914

Females

9108

F18-39

9108

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

20334

Females

8247

F18-39

8247

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2stories
+22ft-21ft

Overall

20386

Females

8243

F18-39

8243

Passing Analysis

Category:
Athletes Passed
1600
Passed By
557
Net Change
+1043
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24595
5K → 10K35186+265#24595#24330
10K → 15K20772+135#24330#24195
15K → 20K12897+31#24195#24164
20K → Half3114+17#24164#24147
Half → 25K14553+92#24147#24055
25K → 30K13163+68#24055#23987
30K → 20M1275+122#23987#23865
20M → 21M1406+134#23865#23731
21M → 35K3126-123#23731#23854
35K → 23M8517+68#23854#23786
23M → 24M608+52#23786#23734
24M → 40K685+63#23734#23671
40K → 25.2M411+40#23671#23631
25.2M → Finish834+79#23631#23552
TOTALS1600557+1043
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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