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BOSTON MARATHON 2023

Kelsey Montgomery

Bib: 25554•F

MA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
39:21
Rank: #26558
Start → 5K
39:21 | 12:40/mi
10K· 6.21 mi
1:18:56
Rank: #26551 (+7)
5K → 10K
39:35 | 12:44/mi
15K· 9.32 mi
1:59:52
Rank: #26556 (-5)
10K → 15K
40:56 | 13:11/mi
20K· 12.43 mi
2:42:48
Rank: #26559 (-3)
15K → 20K
42:56 | 13:49/mi
Half· 13.11 mi
2:51:50
Rank: #26560 (-1)
20K → Half
9:02 | 13:14/mi
25K· 15.53 mi
3:25:10
Rank: #26550 (+10)
Half → 25K
33:20 | 13:45/mi
30K· 18.64 mi
4:12:01
Rank: #26561 (-11)
25K → 30K
46:51 | 15:05/mi
20M
4:33:16
Rank: #26569 (-8)
30K → 20M
21:15 | 15:38/mi
21M
4:48:54
Rank: #26567 (+2)
20M → 21M
15:38 | 15:38/mi
35K· 21.75 mi
4:59:44
Rank: #26569 (-2)
21M → 35K
10:50 | 14:29/mi
23M
5:17:41
Rank: #26565 (+4)
35K → 23M
17:57 | 14:20/mi
24M
5:31:59
Rank: #26568 (-3)
23M → 24M
14:18 | 14:18/mi
40K· 24.85 mi
5:44:00
Rank: #26557 (+11)
24M → 40K
12:01 | 14:03/mi
25.2M
5:49:10
Rank: #26555 (+2)
40K → 25.2M
5:10 | 14:59/mi
Finish· 26.22 mi
6:02:24
Rank: #26545 (+10)
25.2M → Finish
13:14 | 12:59/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:51:50
Pace13:06 /mi
2nd Half
Distance13.11 mi
Time3:10:34
Pace14:32 /mi
📊Positive Split: 10.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:57:0639:2112:4039:21
12:40
-
10K
6.21 mi12:36:411:18:5612:4239:35
12:44
+0:04
15K
9.32 mi13:17:371:59:5212:5240:56
13:11
+0:27
20K
12.43 mi14:00:332:42:4813:0642:56
13:49
+0:38
Half
13.11 mi14:09:352:51:5013:069:02
13:14
-0:35
25K
15.53 mi14:42:553:25:1013:1233:20
13:45
+0:31
30K
18.64 mi15:29:464:12:0113:3146:51
15:05
+1:20
20M
20.00 mi15:51:014:33:1613:4021:15
15:38
+0:33
21M
21.00 mi16:06:394:48:5413:4515:38
15:38
0:00
35K
21.75 mi16:17:294:59:4413:4710:50
14:29
-1:09
23M
23.00 mi16:35:265:17:4113:4917:57
14:20
-0:09
24M
24.00 mi16:49:445:31:5913:5014:18
14:18
-0:02
40K
24.85 mi17:01:455:44:0013:5012:01
14:03
-0:15
25.2M
25.20 mi17:06:555:49:1013:515:10
14:59
+0:56
Finish
26.22 mi17:20:096:02:2413:5013:14
12:59
-2:00

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

12:40 /mi

Average Pace

13:50 /mi

Slowest Pace

15:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:22:08

39% of race

Time at Steady Pace

2:11:22

36% of race

Time at Slower Pace

1:28:54

25% of race

Average Pace: 13:49 /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 mi11:57:0639:2112:4039:21
12:40
#26558
10K
6.21 mi12:36:411:18:5612:4239:35
12:44
#26551
15K
9.32 mi13:17:371:59:5212:5240:56
13:11
#26556
20K
12.43 mi14:00:332:42:4813:0642:56
13:49
#26559
Half
13.11 mi14:09:352:51:5013:069:02
13:14
#26560
25K
15.53 mi14:42:553:25:1013:1233:20
13:45
#26550
30K
18.64 mi15:29:464:12:0113:3146:51
15:05
#26561
20M
20.00 mi15:51:014:33:1613:4021:15
15:38
#26569
21M
21.00 mi16:06:394:48:5413:4515:38
15:38
#26567
35K
21.75 mi16:17:294:59:4413:4710:50
14:29
#26569
23M
23.00 mi16:35:265:17:4113:4917:57
14:20
#26565
24M
24.00 mi16:49:445:31:5913:5014:18
14:18
#26568
40K
24.85 mi17:01:455:44:0013:5012:01
14:03
#26557
25.2M
25.20 mi17:06:555:49:1013:515:10
14:59
#26555
Finish
26.22 mi17:20:096:02:2413:5013:14
12:59
#26545
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi26558113941139426526(Top 100%)11377(Top 100%)11377(Top 233%)
10K6.21 mi3.10 mi26551+711395-111395-126519(Top 100%)11376(Top 100%)11376(Top 233%)
15K9.32 mi3.11 mi26556-511398-311398-326526(Top 100%)11377(Top 100%)11377(Top 233%)
20K12.43 mi3.11 mi26559-3113981139826498(Top 100%)11354(Top 99%)11354(Top 232%)
Half13.11 mi0.68 mi26560-111397+111397+126413(Top 99%)11315(Top 99%)11315(Top 232%)
25K15.53 mi2.42 mi26550+1011394+311394+326238(Top 99%)11211(Top 98%)11211(Top 230%)
30K18.64 mi3.11 mi26561-1111398-411398-426436(Top 99%)11332(Top 99%)11332(Top 232%)
20M20.00 mi1.36 mi26569-811401-311401-326447(Top 99%)11343(Top 99%)11343(Top 232%)
21M21.00 mi1.00 mi26567+211397+411397+426087(Top 98%)11163(Top 98%)11163(Top 229%)
35K21.75 mi0.75 mi26569-211402-511402-526303(Top 99%)11278(Top 99%)11278(Top 231%)
23M23.00 mi1.25 mi26565+411399+311399+326027(Top 98%)11149(Top 98%)11149(Top 228%)
24M24.00 mi1.00 mi26568-3113991139926191(Top 98%)11248(Top 98%)11248(Top 230%)
40K24.85 mi0.85 mi26557+1111392+711392+725721(Top 97%)11038(Top 97%)11038(Top 226%)
25.2M25.20 mi0.35 mi26555+2113921139225710(Top 97%)11036(Top 97%)11036(Top 226%)
Finish26.22 mi1.02 mi26545+1011386+611386+625962(Top 98%)11152(Top 98%)11152(Top 228%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 100%
×21stories
+97ft-345ft

Overall

26526

Females

11377

F18-39

11377

5K→10K

3.1 - 6.2 mi

Top 100%
×5stories
+79ft-138ft

Overall

26519

Females

11376

F18-39

11376

10K→15K

6.2 - 9.3 mi

Top 100%
×3stories
+67ft-78ft

Overall

26526

Females

11377

F18-39

11377

15K→20K

9.3 - 12.4 mi

Top 100%
×5stories
+106ft-86ft

Overall

26498

Females

11354

F18-39

11354

20K→Half

12.4 - 13.1 mi

Top 99%
×2stories
+19ft-37ft

Overall

26413

Females

11315

F18-39

11315

Half→25K

13.1 - 15.5 mi

Top 99%
×4stories
+66ft-88ft

Overall

26238

Females

11211

F18-39

11211

25K→30K

15.5 - 18.6 mi

Top 99%
×9stories
+181ft-148ft

Overall

26436

Females

11332

F18-39

11332

30K→20M

18.6 - 20.0 mi

Top 99%
×5stories
+64ft-50ft

Overall

26447

Females

11343

F18-39

11343

20M→21M

20.0 - 21.0 mi

Top 98%
×8stories
+106ft-24ft

Overall

26087

Females

11163

F18-39

11163

21M→35K

21.0 - 21.8 mi

Top 99%
×7stories
+17ft-86ft

Overall

26303

Females

11278

F18-39

11278

35K→23M

21.8 - 23.0 mi

Top 98%
×5stories
+23ft-63ft

Overall

26027

Females

11149

F18-39

11149

23M→24M

23.0 - 24.0 mi

Top 98%
×6stories
+12ft-82ft

Overall

26191

Females

11248

F18-39

11248

24M→40K

24.0 - 24.9 mi

Top 97%
×1story
+6ft-20ft

Overall

25721

Females

11038

F18-39

11038

40K→25.2M

24.9 - 25.2 mi

Top 97%
×1story
+13ft-16ft

Overall

25710

Females

11036

F18-39

11036

25.2M→Finish

25.2 - 26.2 mi

Top 98%
×2stories
+22ft-21ft

Overall

25962

Females

11152

F18-39

11152

Passing Analysis

Category:
Athletes Passed
112
Passed By
99
Net Change
+13
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26558
5K → 10K2114+7#26558#26551
10K → 15K712-5#26551#26556
15K → 20K1013-3#26556#26559
20K → Half12-1#26559#26560
Half → 25K155+10#26560#26550
25K → 30K1021-11#26550#26561
30K → 20M311-8#26561#26569
20M → 21M75+2#26569#26567
21M → 35K35-2#26567#26569
35K → 23M84+4#26569#26565
23M → 24M14-3#26565#26568
24M → 40K110+11#26568#26557
40K → 25.2M31+2#26557#26555
25.2M → Finish122+10#26555#26545
TOTALS11299+13
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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