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BOSTON MARATHON 2023

Livia Coburn

Bib: 7242•F

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Overall
#0 / 26622
Top 25%
Gender (Female)
#0 / 11423
Top 7%
Division (F18-39)
#0 / 4884
Top 14%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:36
Rank: #5961
Start → 5K
21:36 | 6:57/mi
10K· 6.21 mi
42:53
Rank: #5840 (+121)
5K → 10K
21:17 | 6:51/mi
15K· 9.32 mi
1:04:29
Rank: #5991 (-151)
10K → 15K
21:36 | 6:57/mi
20K· 12.43 mi
1:26:44
Rank: #6226 (-235)
15K → 20K
22:15 | 7:10/mi
Half· 13.11 mi
1:31:37
Rank: #6296 (-70)
20K → Half
4:53 | 7:09/mi
25K· 15.53 mi
1:49:26
Rank: #6475 (-179)
Half → 25K
17:49 | 7:21/mi
30K· 18.64 mi
2:13:00
Rank: #6602 (-127)
25K → 30K
23:34 | 7:35/mi
20M
2:23:08
Rank: #6556 (+46)
30K → 20M
10:08 | 7:27/mi
21M
2:31:15
Rank: #6604 (-48)
20M → 21M
8:07 | 8:07/mi
35K· 21.75 mi
2:36:40
Rank: #6575 (+29)
21M → 35K
5:25 | 7:14/mi
23M
2:46:14
Rank: #6570 (+5)
35K → 23M
9:34 | 7:38/mi
24M
2:53:54
Rank: #6611 (-41)
23M → 24M
7:40 | 7:40/mi
40K· 24.85 mi
3:00:42
Rank: #6662 (-51)
24M → 40K
6:48 | 7:57/mi
25.2M
3:03:34
Rank: #6673 (-11)
40K → 25.2M
2:52 | 8:19/mi
Finish· 26.22 mi
3:11:27
Rank: #6757 (-84)
25.2M → Finish
7:53 | 7:44/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:31:37
Pace6:59 /mi
2nd Half
Distance13.11 mi
Time1:39:50
Pace7:37 /mi
📊Positive Split: 9.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:0121:366:5721:36
6:57
-
10K
6.21 mi10:47:1842:536:5421:17
6:51
-0:06
15K
9.32 mi11:08:541:04:296:5521:36
6:57
+0:06
20K
12.43 mi11:31:091:26:446:5922:15
7:10
+0:13
Half
13.11 mi11:36:021:31:376:594:53
7:09
-0:01
25K
15.53 mi11:53:511:49:267:0317:49
7:21
+0:12
30K
18.64 mi12:17:252:13:007:0823:34
7:35
+0:14
20M
20.00 mi12:27:332:23:087:0910:08
7:27
-0:08
21M
21.00 mi12:35:402:31:157:128:07
8:07
+0:40
35K
21.75 mi12:41:052:36:407:125:25
7:14
-0:53
23M
23.00 mi12:50:392:46:147:149:34
7:38
+0:24
24M
24.00 mi12:58:192:53:547:157:40
7:40
+0:02
40K
24.85 mi13:05:073:00:427:166:48
7:57
+0:17
25.2M
25.20 mi13:07:593:03:347:172:52
8:19
+0:22
Finish
26.22 mi13:15:523:11:277:187:53
7:44
-0:35

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

6:51 /mi

Average Pace

7:18 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:37:02

51% of race

Time at Steady Pace

1:01:05

32% of race

Time at Slower Pace

33:20

17% of race

Average Pace: 7:18 /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 mi10:26:0121:366:5721:36
6:57
#5961
10K
6.21 mi10:47:1842:536:5421:17
6:51
#5840
15K
9.32 mi11:08:541:04:296:5521:36
6:57
#5991
20K
12.43 mi11:31:091:26:446:5922:15
7:10
#6226
Half
13.11 mi11:36:021:31:376:594:53
7:09
#6296
25K
15.53 mi11:53:511:49:267:0317:49
7:21
#6475
30K
18.64 mi12:17:252:13:007:0823:34
7:35
#6602
20M
20.00 mi12:27:332:23:087:0910:08
7:27
#6556
21M
21.00 mi12:35:402:31:157:128:07
8:07
#6604
35K
21.75 mi12:41:052:36:407:125:25
7:14
#6575
23M
23.00 mi12:50:392:46:147:149:34
7:38
#6570
24M
24.00 mi12:58:192:53:547:157:40
7:40
#6611
40K
24.85 mi13:05:073:00:427:166:48
7:57
#6662
25.2M
25.20 mi13:07:593:03:347:172:52
8:19
#6673
Finish
26.22 mi13:15:523:11:277:187:53
7:44
#6757
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi59614994996280(Top 24%)595(Top 5%)595(Top 12%)
10K6.21 mi3.10 mi5840+121479+20479+205781(Top 22%)491(Top 4%)491(Top 10%)
15K9.32 mi3.11 mi5991-151513-34513-346280(Top 24%)595(Top 5%)595(Top 12%)
20K12.43 mi3.11 mi6226-235568-55568-556881(Top 26%)754(Top 7%)754(Top 15%)
Half13.11 mi0.68 mi6296-70584-16584-167609(Top 29%)952(Top 8%)952(Top 19%)
25K15.53 mi2.42 mi6475-179635-51635-517616(Top 29%)1053(Top 9%)1053(Top 22%)
30K18.64 mi3.11 mi6602-127678-43678-437843(Top 29%)1236(Top 11%)1236(Top 25%)
20M20.00 mi1.36 mi6556+46680-2680-26527(Top 25%)852(Top 7%)852(Top 17%)
21M21.00 mi1.00 mi6604-48710-30710-308124(Top 31%)1562(Top 14%)1562(Top 32%)
35K21.75 mi0.75 mi6575+29708+2708+26799(Top 26%)1017(Top 9%)1017(Top 21%)
23M23.00 mi1.25 mi6570+5719-11719-117378(Top 28%)1320(Top 12%)1320(Top 27%)
24M24.00 mi1.00 mi6611-41744-25744-258863(Top 33%)2025(Top 18%)2025(Top 41%)
40K24.85 mi0.85 mi6662-51774-30774-309737(Top 37%)2513(Top 22%)2513(Top 51%)
25.2M25.20 mi0.35 mi6673-11791-17791-178418(Top 32%)1969(Top 17%)1969(Top 40%)
Finish26.22 mi1.02 mi6757-84827-36827-3610213(Top 38%)2790(Top 24%)2790(Top 57%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 24%
×21stories
+97ft-345ft

Overall

6280

Females

595

F18-39

595

5K→10K

3.1 - 6.2 mi

Top 22%
×5stories
+79ft-138ft

Overall

5781

Females

491

F18-39

491

10K→15K

6.2 - 9.3 mi

Top 24%
×3stories
+67ft-78ft

Overall

6280

Females

595

F18-39

595

15K→20K

9.3 - 12.4 mi

Top 26%
×5stories
+106ft-86ft

Overall

6881

Females

754

F18-39

754

20K→Half

12.4 - 13.1 mi

Top 29%
×2stories
+19ft-37ft

Overall

7609

Females

952

F18-39

952

Half→25K

13.1 - 15.5 mi

Top 29%
×4stories
+66ft-88ft

Overall

7616

Females

1053

F18-39

1053

25K→30K

15.5 - 18.6 mi

Top 29%
×9stories
+181ft-148ft

Overall

7843

Females

1236

F18-39

1236

30K→20M

18.6 - 20.0 mi

Top 25%
×5stories
+64ft-50ft

Overall

6527

Females

852

F18-39

852

20M→21M

20.0 - 21.0 mi

Top 31%
×8stories
+106ft-24ft

Overall

8124

Females

1562

F18-39

1562

21M→35K

21.0 - 21.8 mi

Top 26%
×7stories
+17ft-86ft

Overall

6799

Females

1017

F18-39

1017

35K→23M

21.8 - 23.0 mi

Top 28%
×5stories
+23ft-63ft

Overall

7378

Females

1320

F18-39

1320

23M→24M

23.0 - 24.0 mi

Top 33%
×6stories
+12ft-82ft

Overall

8863

Females

2025

F18-39

2025

24M→40K

24.0 - 24.9 mi

Top 37%
×1story
+6ft-20ft

Overall

9737

Females

2513

F18-39

2513

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

8418

Females

1969

F18-39

1969

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2stories
+22ft-21ft

Overall

10213

Females

2790

F18-39

2790

Passing Analysis

Category:
Athletes Passed
861
Passed By
1657
Net Change
-796
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5961
5K → 10K263142+121#5961#5840
10K → 15K66217-151#5840#5991
15K → 20K43278-235#5991#6226
20K → Half272-70#6226#6296
Half → 25K38217-179#6296#6475
25K → 30K80207-127#6475#6602
30K → 20M7630+46#6602#6556
20M → 21M4290-48#6556#6604
21M → 35K5728+29#6604#6575
35K → 23M6358+5#6575#6570
23M → 24M3475-41#6570#6611
24M → 40K4495-51#6611#6662
40K → 25.2M2132-11#6662#6673
25.2M → Finish32116-84#6673#6757
TOTALS8611657-796
📊

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