Boston Marathon logo
BOSTON MARATHON 2023

Kortne Harris

Bib: 25247•F

TX

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F50-54)
#0 / 1207
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
10:07/mi
31:27
↑ 97↓ 3451.5%
10K· 6.21 mi
10:13/mi
1:03:12
↑ 79↓ 1380.4%
15K· 9.32 mi
10:28/mi
1:35:42
↑ 67↓ 78
20K· 12.43 mi
12:04/mi
2:13:11
↑ 106↓ 860.1%
Half· 13.11 mi
11:04/mi
2:20:44
↑ 19↓ 370.5%
25K· 15.53 mi
10:55/mi
2:47:13
↑ 66↓ 880.2%
30K· 18.64 mi
12:29/mi
3:26:00
↑ 181↓ 1480.2%
20M
11:22/mi
3:41:27
↑ 64↓ 500.2%
21M
12:50/mi
3:54:17
↑ 106↓ 241.6%
35K· 21.75 mi
10:35/mi
4:02:12
↑ 17↓ 861.7%
23M
11:34/mi
4:16:41
↑ 23↓ 630.6%
24M
10:54/mi
4:27:35
↓ 821.3%
40K· 24.85 mi
12:04/mi
4:37:54
↓ 200.3%
25.2M
12:11/mi
4:42:06
↑ 13↓ 160.2%
Finish· 26.22 mi
10:39/mi
4:52:57
↑ 22↓ 21

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
Time2:20:44
Pace10:44 /mi
2nd Half
Distance13.11 mi
Time2:32:13
Pace11:37 /mi
📊Positive Split: 8.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:4331:2710:0731:27
10:07
-
10K
6.21 mi12:25:281:03:1210:1031:45
10:13
+0:06
15K
9.32 mi12:57:581:35:4210:1632:30
10:28
+0:15
20K
12.43 mi13:35:272:13:1110:4337:29
12:04
+1:36
Half
13.11 mi13:43:002:20:4410:447:33
11:04
-1:00
25K
15.53 mi14:09:292:47:1310:4626:29
10:55
-0:09
30K
18.64 mi14:48:163:26:0011:0338:47
12:29
+1:34
20M
20.00 mi15:03:433:41:2711:0415:27
11:22
-1:07
21M
21.00 mi15:16:333:54:1711:0912:50
12:50
+1:28
35K
21.75 mi15:24:284:02:1211:087:55
10:35
-2:15
23M
23.00 mi15:38:574:16:4111:1014:29
11:34
+0:59
24M
24.00 mi15:49:514:27:3511:0910:54
10:54
-0:40
40K
24.85 mi16:00:104:37:5411:1110:19
12:04
+1:10
25.2M
25.20 mi16:04:224:42:0611:124:12
12:11
+0:07
Finish
26.22 mi16:15:134:52:5711:1110:51
10:39
-1:32

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

10:07 /mi

Average Pace

11:11 /mi

Slowest Pace

12:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:54:28

39% of race

Time at Steady Pace

1:00:23

21% of race

Time at Slower Pace

1:58:06

40% of race

Average Pace: 11:10 /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 mi11:53:4331:2710:0731:27
10:07
#23744
10K
6.21 mi12:25:281:03:1210:1031:45
10:13
#24000
15K
9.32 mi12:57:581:35:4210:1632:30
10:28
#24151
20K
12.43 mi13:35:272:13:1110:4337:29
12:04
#24798
Half
13.11 mi13:43:002:20:4410:447:33
11:04
#24813
25K
15.53 mi14:09:292:47:1310:4626:29
10:55
#24651
30K
18.64 mi14:48:163:26:0011:0338:47
12:29
#24753
20M
20.00 mi15:03:433:41:2711:0415:27
11:22
#24643
21M
21.00 mi15:16:333:54:1711:0912:50
12:50
#24625
35K
21.75 mi15:24:284:02:1211:087:55
10:35
#24551
23M
23.00 mi15:38:574:16:4111:1014:29
11:34
#24487
24M
24.00 mi15:49:514:27:3511:0910:54
10:54
#24424
40K
24.85 mi16:00:104:37:5411:1110:19
12:04
#24422
25.2M
25.20 mi16:04:224:42:0611:124:12
12:11
#24408
Finish
26.22 mi16:15:134:52:5711:1110:51
10:39
#24376
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi237449772977224394(Top 92%)10118(Top 89%)10118(Top 838%)
10K6.21 mi3.10 mi24000-2569894-1229894-12224172(Top 91%)9981(Top 87%)9981(Top 827%)
15K9.32 mi3.11 mi24151-1519973-799973-7924394(Top 92%)10118(Top 89%)10118(Top 838%)
20K12.43 mi3.11 mi24798-64710340-36710340-36725702(Top 97%)10888(Top 95%)10888(Top 902%)
Half13.11 mi0.68 mi24813-1510350-1010350-1025029(Top 94%)10510(Top 92%)10510(Top 871%)
25K15.53 mi2.42 mi24651+16210275+7510275+7523853(Top 90%)9879(Top 86%)9879(Top 818%)
30K18.64 mi3.11 mi24753-10210346-7110346-7124981(Top 94%)10556(Top 92%)10556(Top 875%)
20M20.00 mi1.36 mi24643+11010295+5110295+5123318(Top 88%)9693(Top 85%)9693(Top 803%)
21M21.00 mi1.00 mi24625+1810285+1010285+1023889(Top 90%)10030(Top 88%)10030(Top 831%)
35K21.75 mi0.75 mi24551+7410249+3610249+3622555(Top 85%)9358(Top 82%)9358(Top 775%)
23M23.00 mi1.25 mi24487+6410226+2310226+2323378(Top 88%)9794(Top 86%)9794(Top 811%)
24M24.00 mi1.00 mi24424+6310208+1810208+1822870(Top 86%)9567(Top 84%)9567(Top 793%)
40K24.85 mi0.85 mi24422+210209-110209-123982(Top 90%)10171(Top 89%)10171(Top 843%)
25.2M25.20 mi0.35 mi24408+1410200+910200+922837(Top 86%)9575(Top 84%)9575(Top 793%)
Finish26.22 mi1.02 mi24376+3210191+910191+923333(Top 88%)9826(Top 86%)9826(Top 814%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 92%
×21story building
+97ft-345ft

Overall

24394

Females

10118

F50-54

10118

5K→10K

3.1 - 6.2 mi

Top 91%
×5story building
+79ft-138ft

Overall

24172

Females

9981

F50-54

9981

10K→15K

6.2 - 9.3 mi

Top 92%
×3story building
+67ft-78ft

Overall

24394

Females

10118

F50-54

10118

15K→20K

9.3 - 12.4 mi

Top 97%
×5story building
+106ft-86ft

Overall

25702

Females

10888

F50-54

10888

20K→Half

12.4 - 13.1 mi

Top 94%
×2story building
+19ft-37ft

Overall

25029

Females

10510

F50-54

10510

Half→25K

13.1 - 15.5 mi

Top 90%
×4story building
+66ft-88ft

Overall

23853

Females

9879

F50-54

9879

25K→30K

15.5 - 18.6 mi

Top 94%
×9story building
+181ft-148ft

Overall

24981

Females

10556

F50-54

10556

30K→20M

18.6 - 20.0 mi

Top 88%
×5story building
+64ft-50ft

Overall

23318

Females

9693

F50-54

9693

20M→21M

20.0 - 21.0 mi

Top 90%
×8story building
+106ft-24ft

Overall

23889

Females

10030

F50-54

10030

21M→35K

21.0 - 21.8 mi

Top 85%
×7story building
+17ft-86ft

Overall

22555

Females

9358

F50-54

9358

35K→23M

21.8 - 23.0 mi

Top 88%
×5story building
+23ft-63ft

Overall

23378

Females

9794

F50-54

9794

23M→24M

23.0 - 24.0 mi

Top 86%
×6story building
+12ft-82ft

Overall

22870

Females

9567

F50-54

9567

24M→40K

24.0 - 24.9 mi

Top 90%
×1story
+6ft-20ft

Overall

23982

Females

10171

F50-54

10171

40K→25.2M

24.9 - 25.2 mi

Top 86%
×1story
+13ft-16ft

Overall

22837

Females

9575

F50-54

9575

25.2M→Finish

25.2 - 26.2 mi

Top 88%
×2story building
+22ft-21ft

Overall

23333

Females

9826

F50-54

9826

Passing Analysis

Category:
Athletes Passed
881
Passed By
1513
Net Change
-632
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23744
5K → 10K87343-256#23744#24000
10K → 15K71222-151#24000#24151
15K → 20K7654-647#24151#24798
20K → Half1530-15#24798#24813
Half → 25K17715+162#24813#24651
25K → 30K59161-102#24651#24753
30K → 20M1188+110#24753#24643
20M → 21M3719+18#24643#24625
21M → 35K751+74#24625#24551
35K → 23M7511+64#24551#24487
23M → 24M729+63#24487#24424
24M → 40K2826+2#24424#24422
40K → 25.2M206+14#24422#24408
25.2M → Finish408+32#24408#24376
TOTALS8811513-632
📊

Passing Visuals

Category:
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

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing