Boston Marathon logo
BOSTON MARATHON 2023

Kristen Turnbull

Bib: 17504•F

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 40%
Gender (Female)
#0 / 11423
Top 21%
Masters (Masters Women)
#0 / 6539
Top 9%
Division (F40-44)
#0 / 1878
Top 19%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:46
Rank: #11032
Start → 5K
23:46 | 7:39/mi
10K· 6.21 mi
47:26
Rank: #11210 (-178)
5K → 10K
23:40 | 7:37/mi
15K· 9.32 mi
1:11:03
Rank: #11133 (+77)
10K → 15K
23:37 | 7:36/mi
20K· 12.43 mi
1:35:06
Rank: #11131 (+2)
15K → 20K
24:03 | 7:44/mi
Half· 13.11 mi
1:40:19
Rank: #11141 (-10)
20K → Half
5:13 | 7:39/mi
25K· 15.53 mi
1:59:18
Rank: #11146 (-5)
Half → 25K
18:59 | 7:50/mi
30K· 18.64 mi
2:24:19
Rank: #11101 (+45)
25K → 30K
25:01 | 8:03/mi
20M
2:35:13
Rank: #11027 (+74)
30K → 20M
10:54 | 8:01/mi
21M
2:43:43
Rank: #10969 (+58)
20M → 21M
8:30 | 8:30/mi
35K· 21.75 mi
2:49:35
Rank: #10950 (+19)
21M → 35K
5:52 | 7:51/mi
23M
2:59:28
Rank: #10819 (+131)
35K → 23M
9:53 | 7:54/mi
24M
3:07:10
Rank: #10725 (+94)
23M → 24M
7:42 | 7:42/mi
40K· 24.85 mi
3:13:55
Rank: #10643 (+82)
24M → 40K
6:45 | 7:54/mi
25.2M
3:16:51
Rank: #10619 (+24)
40K → 25.2M
2:56 | 8:30/mi
Finish· 26.22 mi
3:24:38
Rank: #10544 (+75)
25.2M → Finish
7:47 | 7:38/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
Time1:40:19
Pace7:39 /mi
2nd Half
Distance13.11 mi
Time1:44:19
Pace7:57 /mi
📊Positive Split: 4.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:2123:467:3923:46
7:39
-
10K
6.21 mi11:38:0147:267:3823:40
7:37
-0:02
15K
9.32 mi12:01:381:11:037:3723:37
7:36
-0:01
20K
12.43 mi12:25:411:35:067:3924:03
7:44
+0:08
Half
13.11 mi12:30:541:40:197:395:13
7:39
-0:05
25K
15.53 mi12:49:531:59:187:4118:59
7:50
+0:11
30K
18.64 mi13:14:542:24:197:4525:01
8:03
+0:13
20M
20.00 mi13:25:482:35:137:4610:54
8:01
-0:02
21M
21.00 mi13:34:182:43:437:488:30
8:30
+0:29
35K
21.75 mi13:40:102:49:357:485:52
7:51
-0:39
23M
23.00 mi13:50:032:59:287:489:53
7:54
+0:03
24M
24.00 mi13:57:453:07:107:487:42
7:42
-0:12
40K
24.85 mi14:04:303:13:557:486:45
7:54
+0:12
25.2M
25.20 mi14:07:263:16:517:492:56
8:30
+0:36
Finish
26.22 mi14:15:133:24:387:497:47
7:38
-0:52

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

7:36 /mi

Average Pace

7:49 /mi

Slowest Pace

8:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:13:12

94% of race

Time at Steady Pace

11:26

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:48 /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 mi11:14:2123:467:3923:46
7:39
#11032
10K
6.21 mi11:38:0147:267:3823:40
7:37
#11210
15K
9.32 mi12:01:381:11:037:3723:37
7:36
#11133
20K
12.43 mi12:25:411:35:067:3924:03
7:44
#11131
Half
13.11 mi12:30:541:40:197:395:13
7:39
#11141
25K
15.53 mi12:49:531:59:187:4118:59
7:50
#11146
30K
18.64 mi13:14:542:24:197:4525:01
8:03
#11101
20M
20.00 mi13:25:482:35:137:4610:54
8:01
#11027
21M
21.00 mi13:34:182:43:437:488:30
8:30
#10969
35K
21.75 mi13:40:102:49:357:485:52
7:51
#10950
23M
23.00 mi13:50:032:59:287:489:53
7:54
#10819
24M
24.00 mi13:57:453:07:107:487:42
7:42
#10725
40K
24.85 mi14:04:303:13:557:486:45
7:54
#10643
25.2M
25.20 mi14:07:263:16:517:492:56
8:30
#10619
Finish
26.22 mi14:15:133:24:387:497:47
7:38
#10544
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi110322345234511042(Top 41%)2371(Top 21%)2371(Top 126%)
10K6.21 mi3.10 mi11210-1782444-992444-9911496(Top 43%)2598(Top 23%)2598(Top 138%)
15K9.32 mi3.11 mi11133+772408+362408+3611042(Top 41%)2371(Top 21%)2371(Top 126%)
20K12.43 mi3.11 mi11131+22399+92399+911241(Top 42%)2533(Top 22%)2533(Top 135%)
Half13.11 mi0.68 mi11141-102406-72406-711449(Top 43%)2590(Top 23%)2590(Top 138%)
25K15.53 mi2.42 mi11146-52433-272433-2711352(Top 43%)2683(Top 23%)2683(Top 143%)
30K18.64 mi3.11 mi11101+452460-272460-2711322(Top 43%)2797(Top 24%)2797(Top 149%)
20M20.00 mi1.36 mi11027+742451+92451+910448(Top 39%)2456(Top 22%)2456(Top 131%)
21M21.00 mi1.00 mi10969+582446+52446+510504(Top 39%)2625(Top 23%)2625(Top 140%)
35K21.75 mi0.75 mi10950+192451-52451-510981(Top 41%)2858(Top 25%)2858(Top 152%)
23M23.00 mi1.25 mi10819+1312411+402411+409068(Top 34%)2070(Top 18%)2070(Top 110%)
24M24.00 mi1.00 mi10725+942390+212390+219121(Top 34%)2165(Top 19%)2165(Top 115%)
40K24.85 mi0.85 mi10643+822376+142376+149340(Top 35%)2322(Top 20%)2322(Top 124%)
25.2M25.20 mi0.35 mi10619+242379-32379-39637(Top 36%)2520(Top 22%)2520(Top 134%)
Finish26.22 mi1.02 mi10544+752371+82371+89572(Top 36%)2502(Top 22%)2502(Top 133%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21stories
+97ft-345ft

Overall

11042

Females

2371

F40-44

2371

5K→10K

3.1 - 6.2 mi

Top 43%
×5stories
+79ft-138ft

Overall

11496

Females

2598

F40-44

2598

10K→15K

6.2 - 9.3 mi

Top 41%
×3stories
+67ft-78ft

Overall

11042

Females

2371

F40-44

2371

15K→20K

9.3 - 12.4 mi

Top 42%
×5stories
+106ft-86ft

Overall

11241

Females

2533

F40-44

2533

20K→Half

12.4 - 13.1 mi

Top 43%
×2stories
+19ft-37ft

Overall

11449

Females

2590

F40-44

2590

Half→25K

13.1 - 15.5 mi

Top 43%
×4stories
+66ft-88ft

Overall

11352

Females

2683

F40-44

2683

25K→30K

15.5 - 18.6 mi

Top 43%
×9stories
+181ft-148ft

Overall

11322

Females

2797

F40-44

2797

30K→20M

18.6 - 20.0 mi

Top 39%
×5stories
+64ft-50ft

Overall

10448

Females

2456

F40-44

2456

20M→21M

20.0 - 21.0 mi

Top 39%
×8stories
+106ft-24ft

Overall

10504

Females

2625

F40-44

2625

21M→35K

21.0 - 21.8 mi

Top 41%
×7stories
+17ft-86ft

Overall

10981

Females

2858

F40-44

2858

35K→23M

21.8 - 23.0 mi

Top 34%
×5stories
+23ft-63ft

Overall

9068

Females

2070

F40-44

2070

23M→24M

23.0 - 24.0 mi

Top 34%
×6stories
+12ft-82ft

Overall

9121

Females

2165

F40-44

2165

24M→40K

24.0 - 24.9 mi

Top 35%
×1story
+6ft-20ft

Overall

9340

Females

2322

F40-44

2322

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

9637

Females

2520

F40-44

2520

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2stories
+22ft-21ft

Overall

9572

Females

2502

F40-44

2502

Passing Analysis

Category:
Athletes Passed
1767*
Passed By
1279
Net Change
+488
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11032
5K → 10K218396-178#11032#11210
10K → 15K230153+77#11210#11133
15K → 20K157155+2#11133#11131
20K → Half2030-10#11131#11141
Half → 25K125130-5#11141#11146
25K → 30K199154+45#11146#11101
30K → 20M128*54+74#11101#11027
20M → 21M10244+58#11027#10969
21M → 35K5637+19#10969#10950
35K → 23M15120+131#10950#10819
23M → 24M11824+94#10819#10725
24M → 40K11028+82#10725#10643
40K → 25.2M4521+24#10643#10619
25.2M → Finish10833+75#10619#10544
TOTALS1767*1279+488

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

📊

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