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BOSTON MARATHON 2023

Kelly Mccullough

MD

Bib: 19572 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 37%
Gender (Female)
#0 / 11423
Top 18%
Masters (Masters Women)
#0 / 6539
Top 7%
Division (F40-44)
#0 / 1878
Top 16%
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
8:00/mi
24:51
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:35/mi
48:26
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:32/mi
1:11:49
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:28/mi
1:35:00
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:34/mi
1:40:10
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:46/mi
1:59:00
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:46/mi
2:23:07
↑ 181↓ 1480.2%
138 ft elev
20M
7:51/mi
2:33:47
↑ 64↓ 500.2%
148 ft elev
21M
8:22/mi
2:42:09
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:24/mi
2:47:41
↑ 17↓ 861.7%
156 ft elev
23M
7:44/mi
2:57:22
↑ 23↓ 630.6%
116 ft elev
24M
7:34/mi
3:04:56
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:43/mi
3:11:32
↓ 200.3%
20 ft elev
25.2M
8:25/mi
3:14:26
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:34/mi
3:22:09
↑ 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
1:40:107:38 /mi⚡ faster
2nd Half
1:41:597:47 /mi+1.8%
Positive split — 1.8% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
24:518:003.11 mi24:51
8:00
-
10K
48:267:483.10 mi23:35
7:35
-0:25
15K
1:11:497:423.11 mi23:23
7:32
-0:03
20K
1:35:007:393.11 mi23:11
7:28
-0:04
Half(13.11 mi)
1:40:107:380.68 mi5:10
7:34
+0:06
25K
1:59:007:402.42 mi18:50
7:46
+0:12
30K
2:23:077:413.11 mi24:07
7:46
0:00
20M
2:33:477:411.36 mi10:40
7:51
+0:05
21M
2:42:097:431.00 mi8:22
8:22
+0:31
35K
2:47:417:430.75 mi5:32
7:24
-0:58
23M
2:57:227:431.25 mi9:41
7:44
+0:20
24M
3:04:567:421.00 mi7:34
7:34
-0:10
40K
3:11:327:420.85 mi6:36
7:43
+0:09
25.2M
3:14:267:430.35 mi2:54
8:25
+0:42
Finish(26.22 mi)
3:22:097:431.02 mi7:43
7:34
-0:51
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

7:24 /mi

Average Pace

7:43 /mi

Slowest Pace

8:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

3:10:53

94% of race

Time at Steady Pace

11:16

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:43 /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. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi14002402840281039720242024
10K3.10 mi12647+13553229+7993229+7991125324652465
15K3.11 mi11836+8112801+4282801+4281039720242024
20K3.11 mi11064+7722361+4402361+440903015041504
Half(13.11 mi)0.68 mi11048+162353+82353+81085422832283
25K2.42 mi10985+632343+102343+101085624082408
30K3.11 mi10591+3942200+1432200+143909117411741
20M1.36 mi10473+1182159+412159+41925019091909
21M1.00 mi10404+692152+72152+7966122172217
35K0.75 mi10280+1242101+512101+51783214401440
23M1.25 mi10108+1722049+522049+52798715841584
24M1.00 mi9993+1152032+172032+17819917641764
40K0.85 mi9885+1082009+232009+23813517991799
25.2M0.35 mi9853+322004+52004+5902622522252
Finish(26.22 mi)1.02 mi9780+732000+42000+4912522952295

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×21story building
+97ft-345ft

Overall

10397

Females

2024

F40-44

2024

5K→10K

3.1 - 6.2 mi

Top 42%
×5story building
+79ft-138ft

Overall

11253

Females

2465

F40-44

2465

10K→15K

6.2 - 9.3 mi

Top 39%
×3story building
+67ft-78ft

Overall

10397

Females

2024

F40-44

2024

15K→20K

9.3 - 12.4 mi

Top 34%
×5story building
+106ft-86ft

Overall

9030

Females

1504

F40-44

1504

20K→Half

12.4 - 13.1 mi

Top 41%
×2story building
+19ft-37ft

Overall

10854

Females

2283

F40-44

2283

Half→25K

13.1 - 15.5 mi

Top 41%
×4story building
+66ft-88ft

Overall

10856

Females

2408

F40-44

2408

25K→30K

15.5 - 18.6 mi

Top 34%
×9story building
+181ft-148ft

Overall

9091

Females

1741

F40-44

1741

30K→20M

18.6 - 20.0 mi

Top 35%
×5story building
+64ft-50ft

Overall

9250

Females

1909

F40-44

1909

20M→21M

20.0 - 21.0 mi

Top 36%
×8story building
+106ft-24ft

Overall

9661

Females

2217

F40-44

2217

21M→35K

21.0 - 21.8 mi

Top 29%
×7story building
+17ft-86ft

Overall

7832

Females

1440

F40-44

1440

35K→23M

21.8 - 23.0 mi

Top 30%
×5story building
+23ft-63ft

Overall

7987

Females

1584

F40-44

1584

23M→24M

23.0 - 24.0 mi

Top 31%
×6story building
+12ft-82ft

Overall

8199

Females

1764

F40-44

1764

24M→40K

24.0 - 24.9 mi

Top 31%
×1story
+6ft-20ft

Overall

8135

Females

1799

F40-44

1799

40K→25.2M

24.9 - 25.2 mi

Top 34%
×1story
+13ft-16ft

Overall

9026

Females

2252

F40-44

2252

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2story building
+22ft-21ft

Overall

9125

Females

2295

F40-44

2295

Passing Analysis

Category:
▲Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 5K-#14002
5K → 10K
381393+1355
#14002 → #12647
10K → 15K
12823+811
#12647 → #11836
15K → 20K
4776+772
#11836 → #11064
20K → Half
2137+16
#11064 → #11048
Half → 25K
82145+63
#11048 → #10985
25K → 30K
26420+394
#10985 → #10591
30K → 20M
23141*+118
#10591 → #10473
20M → 21M
51120+69
#10473 → #10404
21M → 35K
3127+124
#10404 → #10280
35K → 23M
12184+172
#10280 → #10108
23M → 24M
17132+115
#10108 → #9993
24M → 40K
22130+108
#9993 → #9885
40K → 25.2M
1244+32
#9885 → #9853
25.2M → Finish
36109*+73
#9853 → #9780
TOTALS
3594581*+4222
#14002 → #9780

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

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