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BOSTON MARATHON 2023

Allison Corcoran

Bib: 16265•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 39%
Gender (Female)
#0 / 11423
Top 20%
Division (F18-39)
#0 / 4884
Top 35%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:30
Rank: #10224
Start → 5K
23:30 | 7:34/mi
10K· 6.21 mi
47:08
Rank: #10791 (-567)
5K → 10K
23:38 | 7:36/mi
15K· 9.32 mi
1:10:48
Rank: #10902 (-111)
10K → 15K
23:40 | 7:37/mi
20K· 12.43 mi
1:34:38
Rank: #10829 (+73)
15K → 20K
23:50 | 7:40/mi
Half· 13.11 mi
1:39:54
Rank: #10904 (-75)
20K → Half
5:16 | 7:43/mi
25K· 15.53 mi
1:58:48
Rank: #10885 (+19)
Half → 25K
18:54 | 7:48/mi
30K· 18.64 mi
2:23:24
Rank: #10711 (+174)
25K → 30K
24:36 | 7:55/mi
20M
2:34:14
Rank: #10652 (+59)
30K → 20M
10:50 | 7:58/mi
21M
2:42:36
Rank: #10563 (+89)
20M → 21M
8:22 | 8:22/mi
35K· 21.75 mi
2:48:28
Rank: #10542 (+21)
21M → 35K
5:52 | 7:51/mi
23M
2:58:35
Rank: #10521 (+21)
35K → 23M
10:07 | 8:05/mi
24M
3:06:13
Rank: #10417 (+104)
23M → 24M
7:38 | 7:38/mi
40K· 24.85 mi
3:13:03
Rank: #10380 (+37)
24M → 40K
6:50 | 8:00/mi
25.2M
3:16:01
Rank: #10360 (+20)
40K → 25.2M
2:58 | 8:36/mi
Finish· 26.22 mi
3:23:53
Rank: #10320 (+40)
25.2M → Finish
7:52 | 7:43/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:54
Pace7:37 /mi
2nd Half
Distance13.11 mi
Time1:43:59
Pace7:56 /mi
📊Positive Split: 4.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:3823:307:3423:30
7:34
-
10K
6.21 mi11:37:1647:087:3523:38
7:36
+0:02
15K
9.32 mi12:00:561:10:487:3623:40
7:37
+0:01
20K
12.43 mi12:24:461:34:387:3723:50
7:40
+0:03
Half
13.11 mi12:30:021:39:547:375:16
7:43
+0:03
25K
15.53 mi12:48:561:58:487:3918:54
7:48
+0:05
30K
18.64 mi13:13:322:23:247:4224:36
7:55
+0:07
20M
20.00 mi13:24:222:34:147:4310:50
7:58
+0:03
21M
21.00 mi13:32:442:42:367:458:22
8:22
+0:24
35K
21.75 mi13:38:362:48:287:455:52
7:51
-0:31
23M
23.00 mi13:48:432:58:357:4610:07
8:05
+0:14
24M
24.00 mi13:56:213:06:137:467:38
7:38
-0:27
40K
24.85 mi14:03:113:13:037:466:50
8:00
+0:22
25.2M
25.20 mi14:06:093:16:017:472:58
8:36
+0:36
Finish
26.22 mi14:14:013:23:537:477:52
7:43
-0:53

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

7:34 /mi

Average Pace

7:47 /mi

Slowest Pace

8:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:12:33

94% of race

Time at Steady Pace

11:20

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:47 /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 mi11:13:3823:307:3423:30
7:34
#10224
10K
6.21 mi11:37:1647:087:3523:38
7:36
#10791
15K
9.32 mi12:00:561:10:487:3623:40
7:37
#10902
20K
12.43 mi12:24:461:34:387:3723:50
7:40
#10829
Half
13.11 mi12:30:021:39:547:375:16
7:43
#10904
25K
15.53 mi12:48:561:58:487:3918:54
7:48
#10885
30K
18.64 mi13:13:322:23:247:4224:36
7:55
#10711
20M
20.00 mi13:24:222:34:147:4310:50
7:58
#10652
21M
21.00 mi13:32:442:42:367:458:22
8:22
#10563
35K
21.75 mi13:38:362:48:287:455:52
7:51
#10542
23M
23.00 mi13:48:432:58:357:4610:07
8:05
#10521
24M
24.00 mi13:56:213:06:137:467:38
7:38
#10417
40K
24.85 mi14:03:113:13:037:466:50
8:00
#10380
25.2M
25.20 mi14:06:093:16:017:472:58
8:36
#10360
Finish
26.22 mi14:14:013:23:537:477:52
7:43
#10320
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi102241967196711180(Top 42%)2448(Top 21%)2448(Top 50%)
10K6.21 mi3.10 mi10791-5672222-2552222-25511401(Top 43%)2554(Top 22%)2554(Top 52%)
15K9.32 mi3.11 mi10902-1112282-602282-6011180(Top 42%)2448(Top 21%)2448(Top 50%)
20K12.43 mi3.11 mi10829+732257+252257+2510694(Top 40%)2255(Top 20%)2255(Top 46%)
Half13.11 mi0.68 mi10904-752289-322289-3212042(Top 45%)2920(Top 26%)2920(Top 60%)
25K15.53 mi2.42 mi10885+192291-22291-211061(Top 42%)2509(Top 22%)2509(Top 51%)
30K18.64 mi3.11 mi10711+1742258+332258+3310286(Top 39%)2298(Top 20%)2298(Top 47%)
20M20.00 mi1.36 mi10652+592256+22256+210090(Top 38%)2272(Top 20%)2272(Top 47%)
21M21.00 mi1.00 mi10563+892231+252231+259669(Top 36%)2225(Top 19%)2225(Top 46%)
35K21.75 mi0.75 mi10542+212241-102241-1010975(Top 41%)2852(Top 25%)2852(Top 58%)
23M23.00 mi1.25 mi10521+212258-172258-1710323(Top 39%)2667(Top 23%)2667(Top 55%)
24M24.00 mi1.00 mi10417+1042238+202238+208666(Top 33%)1953(Top 17%)1953(Top 40%)
40K24.85 mi0.85 mi10380+372245-72245-710017(Top 38%)2654(Top 23%)2654(Top 54%)
25.2M25.20 mi0.35 mi10360+202250-52250-510201(Top 38%)2781(Top 24%)2781(Top 57%)
Finish26.22 mi1.02 mi10320+402256-62256-610120(Top 38%)2751(Top 24%)2751(Top 56%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 42%
×21stories
+97ft-345ft

Overall

11180

Females

2448

F18-39

2448

5K→10K

3.1 - 6.2 mi

Top 43%
×5stories
+79ft-138ft

Overall

11401

Females

2554

F18-39

2554

10K→15K

6.2 - 9.3 mi

Top 42%
×3stories
+67ft-78ft

Overall

11180

Females

2448

F18-39

2448

15K→20K

9.3 - 12.4 mi

Top 40%
×5stories
+106ft-86ft

Overall

10694

Females

2255

F18-39

2255

20K→Half

12.4 - 13.1 mi

Top 45%
×2stories
+19ft-37ft

Overall

12042

Females

2920

F18-39

2920

Half→25K

13.1 - 15.5 mi

Top 42%
×4stories
+66ft-88ft

Overall

11061

Females

2509

F18-39

2509

25K→30K

15.5 - 18.6 mi

Top 39%
×9stories
+181ft-148ft

Overall

10286

Females

2298

F18-39

2298

30K→20M

18.6 - 20.0 mi

Top 38%
×5stories
+64ft-50ft

Overall

10090

Females

2272

F18-39

2272

20M→21M

20.0 - 21.0 mi

Top 36%
×8stories
+106ft-24ft

Overall

9669

Females

2225

F18-39

2225

21M→35K

21.0 - 21.8 mi

Top 41%
×7stories
+17ft-86ft

Overall

10975

Females

2852

F18-39

2852

35K→23M

21.8 - 23.0 mi

Top 39%
×5stories
+23ft-63ft

Overall

10323

Females

2667

F18-39

2667

23M→24M

23.0 - 24.0 mi

Top 33%
×6stories
+12ft-82ft

Overall

8666

Females

1953

F18-39

1953

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10017

Females

2654

F18-39

2654

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

10201

Females

2781

F18-39

2781

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2stories
+22ft-21ft

Overall

10120

Females

2751

F18-39

2751

Passing Analysis

Category:
Athletes Passed
1563*
Passed By
1659
Net Change
-96
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10224
5K → 10K105672-567#10224#10791
10K → 15K139250-111#10791#10902
15K → 20K195122+73#10902#10829
20K → Half883-75#10829#10904
Half → 25K128109+19#10904#10885
25K → 30K27399+174#10885#10711
30K → 20M108*49+59#10711#10652
20M → 21M12031+89#10652#10563
21M → 35K5534+21#10563#10542
35K → 23M8968+21#10542#10521
23M → 24M12622+104#10521#10417
24M → 40K8750+37#10417#10380
40K → 25.2M4222+20#10380#10360
25.2M → Finish8848+40#10360#10320
TOTALS1563*1659-96

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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