Boston Marathon logo
BOSTON MARATHON 2023

Kristen Jaremback

Bib: 18625•F

OH

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 49%
Division (F40-44)
#0 / 1878
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:29
Rank: #15504
Start → 5K
25:29 | 8:12/mi
10K· 6.21 mi
51:05
Rank: #15976 (-472)
5K → 10K
25:36 | 8:14/mi
15K· 9.32 mi
1:17:06
Rank: #16319 (-343)
10K → 15K
26:01 | 8:22/mi
20K· 12.43 mi
1:43:22
Rank: #16412 (-93)
15K → 20K
26:16 | 8:27/mi
Half· 13.11 mi
1:49:03
Rank: #16425 (-13)
20K → Half
5:41 | 8:20/mi
25K· 15.53 mi
2:09:43
Rank: #16415 (+10)
Half → 25K
20:40 | 8:31/mi
30K· 18.64 mi
2:38:03
Rank: #16646 (-231)
25K → 30K
28:20 | 9:07/mi
20M
2:51:06
Rank: #16881 (-235)
30K → 20M
13:03 | 9:36/mi
21M
3:01:12
Rank: #16960 (-79)
20M → 21M
10:06 | 10:06/mi
35K· 21.75 mi
3:08:16
Rank: #17100 (-140)
21M → 35K
7:04 | 9:27/mi
23M
3:20:35
Rank: #17291 (-191)
35K → 23M
12:19 | 9:50/mi
24M
3:30:13
Rank: #17448 (-157)
23M → 24M
9:38 | 9:38/mi
40K· 24.85 mi
3:38:25
Rank: #17541 (-93)
24M → 40K
8:12 | 9:35/mi
25.2M
3:41:57
Rank: #17566 (-25)
40K → 25.2M
3:32 | 10:15/mi
Finish· 26.22 mi
3:51:30
Rank: #17673 (-107)
25.2M → Finish
9:33 | 9:22/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:03
Pace8:19 /mi
2nd Half
Distance13.11 mi
Time2:02:27
Pace9:20 /mi
📊Positive Split: 12.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:5425:298:1225:29
8:12
-
10K
6.21 mi11:42:3051:058:1325:36
8:14
+0:02
15K
9.32 mi12:08:311:17:068:1626:01
8:22
+0:08
20K
12.43 mi12:34:471:43:228:1926:16
8:27
+0:05
Half
13.11 mi12:40:281:49:038:195:41
8:20
-0:07
25K
15.53 mi13:01:082:09:438:2120:40
8:31
+0:11
30K
18.64 mi13:29:282:38:038:2928:20
9:07
+0:36
20M
20.00 mi13:42:312:51:068:3313:03
9:36
+0:29
21M
21.00 mi13:52:373:01:128:3810:06
10:06
+0:30
35K
21.75 mi13:59:413:08:168:397:04
9:27
-0:39
23M
23.00 mi14:12:003:20:358:4312:19
9:50
+0:23
24M
24.00 mi14:21:383:30:138:469:38
9:38
-0:12
40K
24.85 mi14:29:503:38:258:478:12
9:35
-0:03
25.2M
25.20 mi14:33:223:41:578:483:32
10:15
+0:40
Finish
26.22 mi14:42:553:51:308:509:33
9:22
-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

8:12 /mi

Average Pace

8:50 /mi

Slowest Pace

10:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:09:43

56% of race

Time at Steady Pace

1:15:50

33% of race

Time at Slower Pace

25:57

11% of race

Average Pace: 8:50 /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 mi11:16:5425:298:1225:29
8:12
#15504
10K
6.21 mi11:42:3051:058:1325:36
8:14
#15976
15K
9.32 mi12:08:311:17:068:1626:01
8:22
#16319
20K
12.43 mi12:34:471:43:228:1926:16
8:27
#16412
Half
13.11 mi12:40:281:49:038:195:41
8:20
#16425
25K
15.53 mi13:01:082:09:438:2120:40
8:31
#16415
30K
18.64 mi13:29:282:38:038:2928:20
9:07
#16646
20M
20.00 mi13:42:312:51:068:3313:03
9:36
#16881
21M
21.00 mi13:52:373:01:128:3810:06
10:06
#16960
35K
21.75 mi13:59:413:08:168:397:04
9:27
#17100
23M
23.00 mi14:12:003:20:358:4312:19
9:50
#17291
24M
24.00 mi14:21:383:30:138:469:38
9:38
#17448
40K
24.85 mi14:29:503:38:258:478:12
9:35
#17541
25.2M
25.20 mi14:33:223:41:578:483:32
10:15
#17566
Finish
26.22 mi14:42:553:51:308:509:33
9:22
#17673
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi155044972497217006(Top 64%)5920(Top 52%)5920(Top 315%)
10K6.21 mi3.10 mi15976-4725269-2975269-29716542(Top 62%)5607(Top 49%)5607(Top 299%)
15K9.32 mi3.11 mi16319-3435480-2115480-21117006(Top 64%)5920(Top 52%)5920(Top 315%)
20K12.43 mi3.11 mi16412-935559-795559-7916585(Top 62%)5700(Top 50%)5700(Top 304%)
Half13.11 mi0.68 mi16425-135571-125571-1216742(Top 63%)5753(Top 50%)5753(Top 306%)
25K15.53 mi2.42 mi16415+105588-175588-1716372(Top 61%)5660(Top 50%)5660(Top 301%)
30K18.64 mi3.11 mi16646-2315776-1885776-18817800(Top 67%)6524(Top 57%)6524(Top 347%)
20M20.00 mi1.36 mi16881-2355904-1285904-12819238(Top 72%)7416(Top 65%)7416(Top 395%)
21M21.00 mi1.00 mi16960-795965-615965-6118395(Top 69%)6993(Top 61%)6993(Top 372%)
35K21.75 mi0.75 mi17100-1406059-946059-9419695(Top 74%)7749(Top 68%)7749(Top 413%)
23M23.00 mi1.25 mi17291-1916191-1326191-13219533(Top 73%)7697(Top 67%)7697(Top 410%)
24M24.00 mi1.00 mi17448-1576295-1046295-10419691(Top 74%)7800(Top 68%)7800(Top 415%)
40K24.85 mi0.85 mi17541-936367-726367-7218660(Top 70%)7301(Top 64%)7301(Top 389%)
25.2M25.20 mi0.35 mi17566-256390-236390-2318301(Top 69%)7110(Top 62%)7110(Top 379%)
Finish26.22 mi1.02 mi17673-1076461-716461-7119662(Top 74%)7808(Top 68%)7808(Top 416%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21stories
+97ft-345ft

Overall

17006

Females

5920

F40-44

5920

5K→10K

3.1 - 6.2 mi

Top 62%
×5stories
+79ft-138ft

Overall

16542

Females

5607

F40-44

5607

10K→15K

6.2 - 9.3 mi

Top 64%
×3stories
+67ft-78ft

Overall

17006

Females

5920

F40-44

5920

15K→20K

9.3 - 12.4 mi

Top 62%
×5stories
+106ft-86ft

Overall

16585

Females

5700

F40-44

5700

20K→Half

12.4 - 13.1 mi

Top 63%
×2stories
+19ft-37ft

Overall

16742

Females

5753

F40-44

5753

Half→25K

13.1 - 15.5 mi

Top 61%
×4stories
+66ft-88ft

Overall

16372

Females

5660

F40-44

5660

25K→30K

15.5 - 18.6 mi

Top 67%
×9stories
+181ft-148ft

Overall

17800

Females

6524

F40-44

6524

30K→20M

18.6 - 20.0 mi

Top 72%
×5stories
+64ft-50ft

Overall

19238

Females

7416

F40-44

7416

20M→21M

20.0 - 21.0 mi

Top 69%
×8stories
+106ft-24ft

Overall

18395

Females

6993

F40-44

6993

21M→35K

21.0 - 21.8 mi

Top 74%
×7stories
+17ft-86ft

Overall

19695

Females

7749

F40-44

7749

35K→23M

21.8 - 23.0 mi

Top 73%
×5stories
+23ft-63ft

Overall

19533

Females

7697

F40-44

7697

23M→24M

23.0 - 24.0 mi

Top 74%
×6stories
+12ft-82ft

Overall

19691

Females

7800

F40-44

7800

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

18660

Females

7301

F40-44

7301

40K→25.2M

24.9 - 25.2 mi

Top 69%
×1story
+13ft-16ft

Overall

18301

Females

7110

F40-44

7110

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2stories
+22ft-21ft

Overall

19662

Females

7808

F40-44

7808

Passing Analysis

Category:
Athletes Passed
892
Passed By
3061
Net Change
-2169
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15504
5K → 10K133605-472#15504#15976
10K → 15K90433-343#15976#16319
15K → 20K130223-93#16319#16412
20K → Half2942-13#16412#16425
Half → 25K147137+10#16425#16415
25K → 30K117348-231#16415#16646
30K → 20M32267-235#16646#16881
20M → 21M52131-79#16881#16960
21M → 35K18158-140#16960#17100
35K → 23M36227-191#17100#17291
23M → 24M24181-157#17291#17448
24M → 40K37130-93#17448#17541
40K → 25.2M2550-25#17541#17566
25.2M → Finish22129-107#17566#17673
TOTALS8923061-2169
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing