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BOSTON MARATHON 2023

Keri Mckay

CT

Bib: 15498 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 41%
Gender (Female)
#0 / 11423
Top 22%
Masters (Masters Women)
#0 / 6539
Top 10%
Division (F50-54)
#0 / 1207
Top 5%
Race Day Weather
49°/39°F
light intensity drizzle

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:55/mi
24:35
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:47/mi
48:47
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:48/mi
1:13:02
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:52/mi
1:37:28
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:46/mi
1:42:46
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:52/mi
2:01:50
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:59/mi
2:26:39
↑ 181↓ 1480.2%
138 ft elev
20M
7:58/mi
2:37:29
↑ 64↓ 500.2%
148 ft elev
21M
8:14/mi
2:45:43
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:46/mi
2:51:32
↑ 17↓ 861.7%
156 ft elev
23M
7:52/mi
3:01:23
↑ 23↓ 630.6%
116 ft elev
24M
7:36/mi
3:08:59
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:37/mi
3:15:30
↓ 200.3%
20 ft elev
25.2M
8:01/mi
3:18:16
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:23/mi
3:25:47
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:42:467:50 /mi⚖️ balanced
2nd Half
1:43:017:52 /mi⚖️ balanced
Even split — consistent pacing between halves
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
24:357:553.11 mi24:35
7:55
-
10K
48:477:513.10 mi24:12
7:47
-0:08
15K
1:13:027:503.11 mi24:15
7:48
+0:01
20K
1:37:287:513.11 mi24:26
7:52
+0:04
Half(13.11 mi)
1:42:467:500.68 mi5:18
7:46
-0:06
25K
2:01:507:512.42 mi19:04
7:52
+0:06
30K
2:26:397:523.11 mi24:49
7:59
+0:07
20M
2:37:297:521.36 mi10:50
7:58
-0:01
21M
2:45:437:531.00 mi8:14
8:14
+0:16
35K
2:51:327:530.75 mi5:49
7:46
-0:28
23M
3:01:237:531.25 mi9:51
7:52
+0:06
24M
3:08:597:521.00 mi7:36
7:36
-0:16
40K
3:15:307:520.85 mi6:31
7:37
+0:01
25.2M
3:18:167:520.35 mi2:46
8:01
+0:24
Finish(26.22 mi)
3:25:477:511.02 mi7:31
7:23
-0:38
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

7:23 /mi

Average Pace

7:51 /mi

Slowest Pace

8:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

3:17:33

96% of race

Time at Steady Pace

8:14

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:51 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi13357364236421277433303330
10K3.10 mi13198+1593563+793563+791303034413441
15K3.11 mi13005+1933459+1043459+1041277433303330
20K3.11 mi12788+2173356+1033356+1031228931263126
Half(13.11 mi)0.68 mi12766+223344+123344+121246131643164
25K2.42 mi12536+2303248+963248+961164628552855
30K3.11 mi12188+3483085+1633085+1631080825462546
20M1.36 mi11998+1902996+892996+891009822802280
21M1.00 mi11789+2092895+1012895+101883018571857
35K0.75 mi11744+452879+162879+161051626162616
23M1.25 mi11520+2242780+992780+99889619781978
24M1.00 mi11360+1602713+672713+67844818671867
40K0.85 mi11166+1942632+812632+81749915721572
25.2M0.35 mi11070+962601+312601+31676013461346
Finish(26.22 mi)1.02 mi10913+1572548+532548+53766616951695

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21story building
+97ft-345ft

Overall

12774

Females

3330

F50-54

3330

5K→10K

3.1 - 6.2 mi

Top 49%
×5story building
+79ft-138ft

Overall

13030

Females

3441

F50-54

3441

10K→15K

6.2 - 9.3 mi

Top 48%
×3story building
+67ft-78ft

Overall

12774

Females

3330

F50-54

3330

15K→20K

9.3 - 12.4 mi

Top 46%
×5story building
+106ft-86ft

Overall

12289

Females

3126

F50-54

3126

20K→Half

12.4 - 13.1 mi

Top 47%
×2story building
+19ft-37ft

Overall

12461

Females

3164

F50-54

3164

Half→25K

13.1 - 15.5 mi

Top 44%
×4story building
+66ft-88ft

Overall

11646

Females

2855

F50-54

2855

25K→30K

15.5 - 18.6 mi

Top 41%
×9story building
+181ft-148ft

Overall

10808

Females

2546

F50-54

2546

30K→20M

18.6 - 20.0 mi

Top 38%
×5story building
+64ft-50ft

Overall

10098

Females

2280

F50-54

2280

20M→21M

20.0 - 21.0 mi

Top 33%
×8story building
+106ft-24ft

Overall

8830

Females

1857

F50-54

1857

21M→35K

21.0 - 21.8 mi

Top 40%
×7story building
+17ft-86ft

Overall

10516

Females

2616

F50-54

2616

35K→23M

21.8 - 23.0 mi

Top 33%
×5story building
+23ft-63ft

Overall

8896

Females

1978

F50-54

1978

23M→24M

23.0 - 24.0 mi

Top 32%
×6story building
+12ft-82ft

Overall

8448

Females

1867

F50-54

1867

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7499

Females

1572

F50-54

1572

40K→25.2M

24.9 - 25.2 mi

Top 25%
×1story
+13ft-16ft

Overall

6760

Females

1346

F50-54

1346

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2story building
+22ft-21ft

Overall

7666

Females

1695

F50-54

1695

Passing Analysis

Category:
▲Net Change
+0
0 passed by0 passed
SegmentMovementRank
Start → 5K-#13357
5K → 10K
232391+159
#13357 → #13198
10K → 15K
119312+193
#13198 → #13005
15K → 20K
77294+217
#13005 → #12788
20K → Half
2345+22
#12788 → #12766
Half → 25K
34264+230
#12766 → #12536
25K → 30K
46394+348
#12536 → #12188
30K → 20M
23213+190
#12188 → #11998
20M → 21M
11220+209
#11998 → #11789
21M → 35K
2772+45
#11789 → #11744
35K → 23M
8232+224
#11744 → #11520
23M → 24M
8168+160
#11520 → #11360
24M → 40K
3197+194
#11360 → #11166
40K → 25.2M
4100+96
#11166 → #11070
25.2M → Finish
8165+157
#11070 → #10913
TOTALS
6233067+2444
#13357 → #10913

Passing Visualized

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