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BOSTON MARATHON 2023

Alissa Berkey

Bib: 26356•F

NC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F45-49)
#0 / 1817
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
33:28
Rank: #25317
Start → 5K
33:28 | 10:46/mi
10K· 6.21 mi
1:06:01
Rank: #24961 (+356)
5K → 10K
32:33 | 10:29/mi
15K· 9.32 mi
1:38:01
Rank: #24657 (+304)
10K → 15K
32:00 | 10:18/mi
20K· 12.43 mi
2:09:56
Rank: #24340 (+317)
15K → 20K
31:55 | 10:16/mi
Half· 13.11 mi
2:16:59
Rank: #24313 (+27)
20K → Half
7:03 | 10:20/mi
25K· 15.53 mi
2:41:47
Rank: #23998 (+315)
Half → 25K
24:48 | 10:14/mi
30K· 18.64 mi
3:13:53
Rank: #23610 (+388)
25K → 30K
32:06 | 10:20/mi
20M
3:27:39
Rank: #23444 (+166)
30K → 20M
13:46 | 10:08/mi
21M
3:38:18
Rank: #23282 (+162)
20M → 21M
10:39 | 10:39/mi
35K· 21.75 mi
3:45:42
Rank: #23204 (+78)
21M → 35K
7:24 | 9:53/mi
23M
3:58:25
Rank: #23059 (+145)
35K → 23M
12:43 | 10:09/mi
24M
4:08:05
Rank: #22932 (+127)
23M → 24M
9:40 | 9:40/mi
40K· 24.85 mi
4:16:39
Rank: #22835 (+97)
24M → 40K
8:34 | 10:01/mi
25.2M
4:20:19
Rank: #22799 (+36)
40K → 25.2M
3:40 | 10:38/mi
Finish· 26.22 mi
4:30:04
Rank: #22740 (+59)
25.2M → Finish
9:45 | 9:34/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time2:16:59
Pace10:27 /mi
2nd Half✓ Faster
Distance13.11 mi
Time2:13:05
Pace10:09 /mi
📊Negative Split: 2.8% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:55:3833:2810:4633:28
10:46
-
10K
6.21 mi12:28:111:06:0110:3732:33
10:29
-0:17
15K
9.32 mi13:00:111:38:0110:3132:00
10:18
-0:11
20K
12.43 mi13:32:062:09:5610:2731:55
10:16
-0:02
Half
13.11 mi13:39:092:16:5910:277:03
10:20
+0:04
25K
15.53 mi14:03:572:41:4710:2524:48
10:14
-0:06
30K
18.64 mi14:36:033:13:5310:2432:06
10:20
+0:06
20M
20.00 mi14:49:493:27:3910:2313:46
10:08
-0:12
21M
21.00 mi15:00:283:38:1810:2410:39
10:39
+0:31
35K
21.75 mi15:07:523:45:4210:237:24
9:53
-0:46
23M
23.00 mi15:20:353:58:2510:2212:43
10:09
+0:16
24M
24.00 mi15:30:154:08:0510:209:40
9:40
-0:29
40K
24.85 mi15:38:494:16:3910:208:34
10:01
+0:21
25.2M
25.20 mi15:42:294:20:1910:203:40
10:38
+0:37
Finish
26.22 mi15:52:144:30:0410:189:45
9:34
-1:04

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

10:18 /mi

Slowest Pace

10:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:42:17

82% of race

Time at Steady Pace

47:47

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:18 /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 mi11:55:3833:2810:4633:28
10:46
#25317
10K
6.21 mi12:28:111:06:0110:3732:33
10:29
#24961
15K
9.32 mi13:00:111:38:0110:3132:00
10:18
#24657
20K
12.43 mi13:32:062:09:5610:2731:55
10:16
#24340
Half
13.11 mi13:39:092:16:5910:277:03
10:20
#24313
25K
15.53 mi14:03:572:41:4710:2524:48
10:14
#23998
30K
18.64 mi14:36:033:13:5310:2432:06
10:20
#23610
20M
20.00 mi14:49:493:27:3910:2313:46
10:08
#23444
21M
21.00 mi15:00:283:38:1810:2410:39
10:39
#23282
35K
21.75 mi15:07:523:45:4210:237:24
9:53
#23204
23M
23.00 mi15:20:353:58:2510:2212:43
10:09
#23059
24M
24.00 mi15:30:154:08:0510:209:40
9:40
#22932
40K
24.85 mi15:38:494:16:3910:208:34
10:01
#22835
25.2M
25.20 mi15:42:294:20:1910:203:40
10:38
#22799
Finish
26.22 mi15:52:144:30:0410:189:45
9:34
#22740
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi25317106181061824095(Top 91%)9944(Top 87%)9944(Top 547%)
10K6.21 mi3.10 mi24961+35610411+20710411+20724647(Top 93%)10247(Top 90%)10247(Top 564%)
15K9.32 mi3.11 mi24657+30410255+15610255+15624095(Top 91%)9944(Top 87%)9944(Top 547%)
20K12.43 mi3.11 mi24340+31710084+17110084+17123426(Top 88%)9578(Top 84%)9578(Top 527%)
Half13.11 mi0.68 mi24313+2710070+1410070+1423906(Top 90%)9862(Top 86%)9862(Top 543%)
25K15.53 mi2.42 mi23998+3159896+1749896+17422689(Top 85%)9212(Top 81%)9212(Top 507%)
30K18.64 mi3.11 mi23610+3889705+1919705+19121853(Top 82%)8819(Top 77%)8819(Top 485%)
20M20.00 mi1.36 mi23444+1669632+739632+7320845(Top 78%)8332(Top 73%)8332(Top 459%)
21M21.00 mi1.00 mi23282+1629544+889544+8820033(Top 75%)7956(Top 70%)7956(Top 438%)
35K21.75 mi0.75 mi23204+789517+279517+2721006(Top 79%)8501(Top 74%)8501(Top 468%)
23M23.00 mi1.25 mi23059+1459456+619456+6120470(Top 77%)8218(Top 72%)8218(Top 452%)
24M24.00 mi1.00 mi22932+1279402+549402+5419807(Top 74%)7878(Top 69%)7878(Top 434%)
40K24.85 mi0.85 mi22835+979356+469356+4620048(Top 75%)8090(Top 71%)8090(Top 445%)
25.2M25.20 mi0.35 mi22799+369335+219335+2119582(Top 74%)7847(Top 69%)7847(Top 432%)
Finish26.22 mi1.02 mi22740+599311+249311+2420385(Top 77%)8242(Top 72%)8242(Top 454%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 91%
×21stories
+97ft-345ft

Overall

24095

Females

9944

F45-49

9944

5K→10K

3.1 - 6.2 mi

Top 93%
×5stories
+79ft-138ft

Overall

24647

Females

10247

F45-49

10247

10K→15K

6.2 - 9.3 mi

Top 91%
×3stories
+67ft-78ft

Overall

24095

Females

9944

F45-49

9944

15K→20K

9.3 - 12.4 mi

Top 88%
×5stories
+106ft-86ft

Overall

23426

Females

9578

F45-49

9578

20K→Half

12.4 - 13.1 mi

Top 90%
×2stories
+19ft-37ft

Overall

23906

Females

9862

F45-49

9862

Half→25K

13.1 - 15.5 mi

Top 85%
×4stories
+66ft-88ft

Overall

22689

Females

9212

F45-49

9212

25K→30K

15.5 - 18.6 mi

Top 82%
×9stories
+181ft-148ft

Overall

21853

Females

8819

F45-49

8819

30K→20M

18.6 - 20.0 mi

Top 78%
×5stories
+64ft-50ft

Overall

20845

Females

8332

F45-49

8332

20M→21M

20.0 - 21.0 mi

Top 75%
×8stories
+106ft-24ft

Overall

20033

Females

7956

F45-49

7956

21M→35K

21.0 - 21.8 mi

Top 79%
×7stories
+17ft-86ft

Overall

21006

Females

8501

F45-49

8501

35K→23M

21.8 - 23.0 mi

Top 77%
×5stories
+23ft-63ft

Overall

20470

Females

8218

F45-49

8218

23M→24M

23.0 - 24.0 mi

Top 74%
×6stories
+12ft-82ft

Overall

19807

Females

7878

F45-49

7878

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

20048

Females

8090

F45-49

8090

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1story
+13ft-16ft

Overall

19582

Females

7847

F45-49

7847

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2stories
+22ft-21ft

Overall

20385

Females

8242

F45-49

8242

Passing Analysis

Category:
Athletes Passed
2692
Passed By
115
Net Change
+2577
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25317
5K → 10K41054+356#25317#24961
10K → 15K32218+304#24961#24657
15K → 20K3247+317#24657#24340
20K → Half347+27#24340#24313
Half → 25K3183+315#24313#23998
25K → 30K3913+388#23998#23610
30K → 20M1660+166#23610#23444
20M → 21M1653+162#23444#23282
21M → 35K824+78#23282#23204
35K → 23M1483+145#23204#23059
23M → 24M1303+127#23059#22932
24M → 40K981+97#22932#22835
40K → 25.2M382+36#22835#22799
25.2M → Finish667+59#22799#22740
TOTALS2692115+2577
📊

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