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BOSTON MARATHON 2023

Alayna Colburn

Bib: 10481•F

TN

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 24%
Gender (Female)
#0 / 11423
Top 6%
Division (F18-39)
#0 / 4884
Top 12%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:21
Rank: #9759
Start → 5K
23:21 | 7:31/mi
10K· 6.21 mi
45:26
Rank: #8525 (+1234)
5K → 10K
22:05 | 7:06/mi
15K· 9.32 mi
1:07:27
Rank: #8022 (+503)
10K → 15K
22:01 | 7:05/mi
20K· 12.43 mi
1:29:41
Rank: #7668 (+354)
15K → 20K
22:14 | 7:09/mi
Half· 13.11 mi
1:34:26
Rank: #7570 (+98)
20K → Half
4:45 | 6:58/mi
25K· 15.53 mi
1:51:50
Rank: #7370 (+200)
Half → 25K
17:24 | 7:11/mi
30K· 18.64 mi
2:14:31
Rank: #7079 (+291)
25K → 30K
22:41 | 7:18/mi
20M
2:24:31
Rank: #6980 (+99)
30K → 20M
10:00 | 7:22/mi
21M
2:32:17
Rank: #6891 (+89)
20M → 21M
7:46 | 7:46/mi
35K· 21.75 mi
2:37:32
Rank: #6810 (+81)
21M → 35K
5:15 | 7:01/mi
23M
2:46:44
Rank: #6694 (+116)
35K → 23M
9:12 | 7:21/mi
24M
2:53:58
Rank: #6621 (+73)
23M → 24M
7:14 | 7:14/mi
40K· 24.85 mi
3:00:12
Rank: #6529 (+92)
24M → 40K
6:14 | 7:17/mi
25.2M
3:02:52
Rank: #6482 (+47)
40K → 25.2M
2:40 | 7:44/mi
Finish· 26.22 mi
3:10:01
Rank: #6430 (+52)
25.2M → Finish
7:09 | 7:01/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:26
Pace7:12 /mi
2nd Half
Distance13.11 mi
Time1:35:35
Pace7:17 /mi
📊Positive Split: 1.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:3823:217:3123:21
7:31
-
10K
6.21 mi11:11:4345:267:1922:05
7:06
-0:25
15K
9.32 mi11:33:441:07:277:1422:01
7:05
-0:01
20K
12.43 mi11:55:581:29:417:1322:14
7:09
+0:04
Half
13.11 mi12:00:431:34:267:124:45
6:58
-0:11
25K
15.53 mi12:18:071:51:507:1217:24
7:11
+0:13
30K
18.64 mi12:40:482:14:317:1322:41
7:18
+0:07
20M
20.00 mi12:50:482:24:317:1410:00
7:22
+0:04
21M
21.00 mi12:58:342:32:177:157:46
7:46
+0:24
35K
21.75 mi13:03:492:37:327:155:15
7:01
-0:45
23M
23.00 mi13:13:012:46:447:159:12
7:21
+0:20
24M
24.00 mi13:20:152:53:587:157:14
7:14
-0:07
40K
24.85 mi13:26:293:00:127:156:14
7:17
+0:03
25.2M
25.20 mi13:29:093:02:527:152:40
7:44
+0:27
Finish
26.22 mi13:36:183:10:017:157:09
7:01
-0:43

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

6:58 /mi

Average Pace

7:15 /mi

Slowest Pace

7:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:59:35

95% of race

Time at Steady Pace

10:26

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:15 /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 mi10:49:3823:217:3123:21
7:31
#9759
10K
6.21 mi11:11:4345:267:1922:05
7:06
#8525
15K
9.32 mi11:33:441:07:277:1422:01
7:05
#8022
20K
12.43 mi11:55:581:29:417:1322:14
7:09
#7668
Half
13.11 mi12:00:431:34:267:124:45
6:58
#7570
25K
15.53 mi12:18:071:51:507:1217:24
7:11
#7370
30K
18.64 mi12:40:482:14:317:1322:41
7:18
#7079
20M
20.00 mi12:50:482:24:317:1410:00
7:22
#6980
21M
21.00 mi12:58:342:32:177:157:46
7:46
#6891
35K
21.75 mi13:03:492:37:327:155:15
7:01
#6810
23M
23.00 mi13:13:012:46:447:159:12
7:21
#6694
24M
24.00 mi13:20:152:53:587:157:14
7:14
#6621
40K
24.85 mi13:26:293:00:127:156:14
7:17
#6529
25.2M
25.20 mi13:29:093:02:527:152:40
7:44
#6482
Finish
26.22 mi13:36:183:10:017:157:09
7:01
#6430
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9759173117317084(Top 27%)770(Top 7%)770(Top 16%)
10K6.21 mi3.10 mi8525+12341227+5041227+5047506(Top 28%)890(Top 8%)890(Top 18%)
15K9.32 mi3.11 mi8022+5031045+1821045+1827084(Top 27%)770(Top 7%)770(Top 16%)
20K12.43 mi3.11 mi7668+354938+107938+1076850(Top 26%)742(Top 6%)742(Top 15%)
Half13.11 mi0.68 mi7570+98911+27911+276398(Top 24%)610(Top 5%)610(Top 12%)
25K15.53 mi2.42 mi7370+200852+59852+596555(Top 25%)714(Top 6%)714(Top 15%)
30K18.64 mi3.11 mi7079+291799+53799+536039(Top 23%)642(Top 6%)642(Top 13%)
20M20.00 mi1.36 mi6980+99778+21778+215985(Top 22%)703(Top 6%)703(Top 14%)
21M21.00 mi1.00 mi6891+89766+12766+126025(Top 23%)809(Top 7%)809(Top 17%)
35K21.75 mi0.75 mi6810+81756+10756+105488(Top 21%)618(Top 5%)618(Top 13%)
23M23.00 mi1.25 mi6694+116748+8748+85581(Top 21%)680(Top 6%)680(Top 14%)
24M24.00 mi1.00 mi6621+73745+3745+35970(Top 22%)878(Top 8%)878(Top 18%)
40K24.85 mi0.85 mi6529+92732+13732+135424(Top 20%)779(Top 7%)779(Top 16%)
25.2M25.20 mi0.35 mi6482+47728+4728+45104(Top 19%)749(Top 7%)749(Top 15%)
Finish26.22 mi1.02 mi6430+52722+6722+65333(Top 20%)832(Top 7%)832(Top 17%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21stories
+97ft-345ft

Overall

7084

Females

770

F18-39

770

5K→10K

3.1 - 6.2 mi

Top 28%
×5stories
+79ft-138ft

Overall

7506

Females

890

F18-39

890

10K→15K

6.2 - 9.3 mi

Top 27%
×3stories
+67ft-78ft

Overall

7084

Females

770

F18-39

770

15K→20K

9.3 - 12.4 mi

Top 26%
×5stories
+106ft-86ft

Overall

6850

Females

742

F18-39

742

20K→Half

12.4 - 13.1 mi

Top 24%
×2stories
+19ft-37ft

Overall

6398

Females

610

F18-39

610

Half→25K

13.1 - 15.5 mi

Top 25%
×4stories
+66ft-88ft

Overall

6555

Females

714

F18-39

714

25K→30K

15.5 - 18.6 mi

Top 23%
×9stories
+181ft-148ft

Overall

6039

Females

642

F18-39

642

30K→20M

18.6 - 20.0 mi

Top 22%
×5stories
+64ft-50ft

Overall

5985

Females

703

F18-39

703

20M→21M

20.0 - 21.0 mi

Top 23%
×8stories
+106ft-24ft

Overall

6025

Females

809

F18-39

809

21M→35K

21.0 - 21.8 mi

Top 21%
×7stories
+17ft-86ft

Overall

5488

Females

618

F18-39

618

35K→23M

21.8 - 23.0 mi

Top 21%
×5stories
+23ft-63ft

Overall

5581

Females

680

F18-39

680

23M→24M

23.0 - 24.0 mi

Top 22%
×6stories
+12ft-82ft

Overall

5970

Females

878

F18-39

878

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5424

Females

779

F18-39

779

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5104

Females

749

F18-39

749

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2stories
+22ft-21ft

Overall

5333

Females

832

F18-39

832

Passing Analysis

Category:
Athletes Passed
3488
Passed By
159
Net Change
+3329
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9759
5K → 10K125420+1234#9759#8525
10K → 15K51310+503#8525#8022
15K → 20K36511+354#8022#7668
20K → Half991+98#7668#7570
Half → 25K2066+200#7570#7370
25K → 30K30817+291#7370#7079
30K → 20M11112+99#7079#6980
20M → 21M10415+89#6980#6891
21M → 35K865+81#6891#6810
35K → 23M13115+116#6810#6694
23M → 24M8512+73#6694#6621
24M → 40K10210+92#6621#6529
40K → 25.2M536+47#6529#6482
25.2M → Finish7119+52#6482#6430
TOTALS3488159+3329
📊

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