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BOSTON MARATHON 2023

Siobhan Geary

Bib: 31143•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
10:31/mi
32:41
↑ 97↓ 3451.5%
10K· 6.21 mi
10:29/mi
1:05:16
↑ 79↓ 1380.4%
15K· 9.32 mi
10:18/mi
1:37:16
↑ 67↓ 78
20K· 12.43 mi
10:27/mi
2:09:43
↑ 106↓ 860.1%
Half· 13.11 mi
10:13/mi
2:16:41
↑ 19↓ 370.5%
25K· 15.53 mi
11:02/mi
2:43:26
↑ 66↓ 880.2%
30K· 18.64 mi
11:10/mi
3:18:09
↑ 181↓ 1480.2%
20M
10:57/mi
3:33:02
↑ 64↓ 500.2%
21M
11:35/mi
3:44:37
↑ 106↓ 241.6%
35K· 21.75 mi
10:51/mi
3:52:44
↑ 17↓ 861.7%
23M
11:07/mi
4:06:39
↑ 23↓ 630.6%
24M
10:32/mi
4:17:11
↓ 821.3%
40K· 24.85 mi
10:19/mi
4:26:00
↓ 200.3%
25.2M
12:19/mi
4:30:15
↑ 13↓ 160.2%
Finish· 26.22 mi
9:45/mi
4:40:11
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:16:41
Pace10:26 /mi
2nd Half
Distance13.11 mi
Time2:23:30
Pace10:57 /mi
📊Positive Split: 5.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:4132:4110:3132:41
10:31
-
10K
6.21 mi12:27:161:05:1610:3032:35
10:29
-0:02
15K
9.32 mi12:59:161:37:1610:2632:00
10:18
-0:11
20K
12.43 mi13:31:432:09:4310:2632:27
10:27
+0:09
Half
13.11 mi13:38:412:16:4110:266:58
10:13
-0:14
25K
15.53 mi14:05:262:43:2610:3126:45
11:02
+0:49
30K
18.64 mi14:40:093:18:0910:3834:43
11:10
+0:08
20M
20.00 mi14:55:023:33:0210:3914:53
10:57
-0:13
21M
21.00 mi15:06:373:44:3710:4211:35
11:35
+0:38
35K
21.75 mi15:14:443:52:4410:428:07
10:51
-0:44
23M
23.00 mi15:28:394:06:3910:4313:55
11:07
+0:16
24M
24.00 mi15:39:114:17:1110:4310:32
10:32
-0:35
40K
24.85 mi15:48:004:26:0010:428:49
10:19
-0:13
25.2M
25.20 mi15:52:154:30:1510:434:15
12:19
+2:00
Finish
26.22 mi16:02:114:40:1110:429:56
9:45
-2:34

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

9:45 /mi

Average Pace

10:42 /mi

Slowest Pace

12:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

16:54

6% of race

Time at Steady Pace

2:29:04

53% of race

Time at Slower Pace

1:54:13

41% 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 mi11:54:4132:4110:3132:41
10:31
#24760
10K
6.21 mi12:27:161:05:1610:3032:35
10:29
#24720
15K
9.32 mi12:59:161:37:1610:2632:00
10:18
#24518
20K
12.43 mi13:31:432:09:4310:2632:27
10:27
#24306
Half
13.11 mi13:38:412:16:4110:266:58
10:13
#24266
25K
15.53 mi14:05:262:43:2610:3126:45
11:02
#24211
30K
18.64 mi14:40:093:18:0910:3834:43
11:10
#24037
20M
20.00 mi14:55:023:33:0210:3914:53
10:57
#23953
21M
21.00 mi15:06:373:44:3710:4211:35
11:35
#23859
35K
21.75 mi15:14:443:52:4410:428:07
10:51
#23831
23M
23.00 mi15:28:394:06:3910:4313:55
11:07
#23779
24M
24.00 mi15:39:114:17:1110:4310:32
10:32
#23711
40K
24.85 mi15:48:004:26:0010:428:49
10:19
#23624
25.2M
25.20 mi15:52:154:30:1510:434:15
12:19
#23625
Finish
26.22 mi16:02:114:40:1110:429:56
9:45
#23555
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi24760103081030824097(Top 91%)9946(Top 87%)9946(Top 204%)
10K6.21 mi3.10 mi24720+4010277+3110277+3124663(Top 93%)10255(Top 90%)10255(Top 210%)
15K9.32 mi3.11 mi24518+20210170+10710170+10724097(Top 91%)9946(Top 87%)9946(Top 204%)
20K12.43 mi3.11 mi24306+21210066+10410066+10423747(Top 89%)9773(Top 86%)9773(Top 200%)
Half13.11 mi0.68 mi24266+4010042+2410042+2423698(Top 89%)9740(Top 85%)9740(Top 199%)
25K15.53 mi2.42 mi24211+5510022+2010022+2024030(Top 90%)9967(Top 87%)9967(Top 204%)
30K18.64 mi3.11 mi24037+1749938+849938+8423378(Top 88%)9669(Top 85%)9669(Top 198%)
20M20.00 mi1.36 mi23953+849896+429896+4222632(Top 85%)9321(Top 82%)9321(Top 191%)
21M21.00 mi1.00 mi23859+949859+379859+3722040(Top 83%)9017(Top 79%)9017(Top 185%)
35K21.75 mi0.75 mi23831+289849+109849+1023034(Top 87%)9611(Top 84%)9611(Top 197%)
23M23.00 mi1.25 mi23779+529830+199830+1922577(Top 85%)9366(Top 82%)9366(Top 192%)
24M24.00 mi1.00 mi23711+689806+249806+2422121(Top 83%)9170(Top 80%)9170(Top 188%)
40K24.85 mi0.85 mi23624+879762+449762+4420797(Top 78%)8494(Top 74%)8494(Top 174%)
25.2M25.20 mi0.35 mi23625-19763-19763-123038(Top 87%)9684(Top 85%)9684(Top 198%)
Finish26.22 mi1.02 mi23555+709741+229741+2221000(Top 79%)8569(Top 75%)8569(Top 175%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 91%
×21story building
+97ft-345ft

Overall

24097

Females

9946

F18-39

9946

5K→10K

3.1 - 6.2 mi

Top 93%
×5story building
+79ft-138ft

Overall

24663

Females

10255

F18-39

10255

10K→15K

6.2 - 9.3 mi

Top 91%
×3story building
+67ft-78ft

Overall

24097

Females

9946

F18-39

9946

15K→20K

9.3 - 12.4 mi

Top 89%
×5story building
+106ft-86ft

Overall

23747

Females

9773

F18-39

9773

20K→Half

12.4 - 13.1 mi

Top 89%
×2story building
+19ft-37ft

Overall

23698

Females

9740

F18-39

9740

Half→25K

13.1 - 15.5 mi

Top 90%
×4story building
+66ft-88ft

Overall

24030

Females

9967

F18-39

9967

25K→30K

15.5 - 18.6 mi

Top 88%
×9story building
+181ft-148ft

Overall

23378

Females

9669

F18-39

9669

30K→20M

18.6 - 20.0 mi

Top 85%
×5story building
+64ft-50ft

Overall

22632

Females

9321

F18-39

9321

20M→21M

20.0 - 21.0 mi

Top 83%
×8story building
+106ft-24ft

Overall

22040

Females

9017

F18-39

9017

21M→35K

21.0 - 21.8 mi

Top 87%
×7story building
+17ft-86ft

Overall

23034

Females

9611

F18-39

9611

35K→23M

21.8 - 23.0 mi

Top 85%
×5story building
+23ft-63ft

Overall

22577

Females

9366

F18-39

9366

23M→24M

23.0 - 24.0 mi

Top 83%
×6story building
+12ft-82ft

Overall

22121

Females

9170

F18-39

9170

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

20797

Females

8494

F18-39

8494

40K→25.2M

24.9 - 25.2 mi

Top 87%
×1story
+13ft-16ft

Overall

23038

Females

9684

F18-39

9684

25.2M→Finish

25.2 - 26.2 mi

Top 79%
×2story building
+22ft-21ft

Overall

21000

Females

8569

F18-39

8569

Passing Analysis

Category:
Athletes Passed
1625
Passed By
420
Net Change
+1205
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24760
5K → 10K215175+40#24760#24720
10K → 15K24341+202#24720#24518
15K → 20K23220+212#24518#24306
20K → Half5111+40#24306#24266
Half → 25K11863+55#24266#24211
25K → 30K20632+174#24211#24037
30K → 20M9511+84#24037#23953
20M → 21M10713+94#23953#23859
21M → 35K4012+28#23859#23831
35K → 23M6917+52#23831#23779
23M → 24M768+68#23779#23711
24M → 40K892+87#23711#23624
40K → 25.2M89-1#23624#23625
25.2M → Finish766+70#23625#23555
TOTALS1625420+1205
📊

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