Boston Marathon logo
BOSTON MARATHON 2023

Bethany Kwarta

Bib: 17312•F

CT

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 39%
Gender (Female)
#0 / 11423
Top 20%
Division (F18-39)
#0 / 4884
Top 35%
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
7:54/mi
24:32
↑ 97↓ 3451.5%
10K· 6.21 mi
7:44/mi
48:33
↑ 79↓ 1380.4%
15K· 9.32 mi
7:34/mi
1:12:04
↑ 67↓ 78
20K· 12.43 mi
7:36/mi
1:35:42
↑ 106↓ 860.1%
Half· 13.11 mi
7:30/mi
1:40:49
↑ 19↓ 370.5%
25K· 15.53 mi
7:31/mi
1:59:02
↑ 66↓ 880.2%
30K· 18.64 mi
7:42/mi
2:22:56
↑ 181↓ 1480.2%
20M
8:16/mi
2:34:09
↑ 64↓ 500.2%
21M
8:16/mi
2:42:25
↑ 106↓ 241.6%
35K· 21.75 mi
7:55/mi
2:48:20
↑ 17↓ 861.7%
23M
8:03/mi
2:58:25
↑ 23↓ 630.6%
24M
7:48/mi
3:06:13
↓ 821.3%
40K· 24.85 mi
7:55/mi
3:12:59
↓ 200.3%
25.2M
8:30/mi
3:15:55
↑ 13↓ 160.2%
Finish· 26.22 mi
7:48/mi
3:23:52
↑ 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
Time1:40:49
Pace7:41 /mi
2nd Half
Distance13.11 mi
Time1:43:03
Pace7:52 /mi
📊Positive Split: 2.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:1424:327:5424:32
7:54
-
10K
6.21 mi11:39:1548:337:4924:01
7:44
-0:10
15K
9.32 mi12:02:461:12:047:4423:31
7:34
-0:10
20K
12.43 mi12:26:241:35:427:4223:38
7:36
+0:02
Half
13.11 mi12:31:311:40:497:415:07
7:30
-0:06
25K
15.53 mi12:49:441:59:027:4018:13
7:31
+0:01
30K
18.64 mi13:13:382:22:567:4023:54
7:42
+0:11
20M
20.00 mi13:24:512:34:097:4211:13
8:16
+0:34
21M
21.00 mi13:33:072:42:257:448:16
8:16
0:00
35K
21.75 mi13:39:022:48:207:445:55
7:55
-0:21
23M
23.00 mi13:49:072:58:257:4510:05
8:03
+0:08
24M
24.00 mi13:56:553:06:137:467:48
7:48
-0:15
40K
24.85 mi14:03:413:12:597:466:46
7:55
+0:07
25.2M
25.20 mi14:06:373:15:557:462:56
8:30
+0:35
Finish
26.22 mi14:14:343:23:527:477:57
7:48
-0:42

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

7:30 /mi

Average Pace

7:47 /mi

Slowest Pace

8:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:01:27

89% of race

Time at Steady Pace

22:25

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:47 /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 mi11:15:1424:327:5424:32
7:54
#13213
10K
6.21 mi11:39:1548:337:4924:01
7:44
#12821
15K
9.32 mi12:02:461:12:047:4423:31
7:34
#12088
20K
12.43 mi12:26:241:35:427:4223:38
7:36
#11539
Half
13.11 mi12:31:311:40:497:415:07
7:30
#11459
25K
15.53 mi12:49:441:59:027:4018:13
7:31
#11008
30K
18.64 mi13:13:382:22:567:4023:54
7:42
#10504
20M
20.00 mi13:24:512:34:097:4211:13
8:16
#10621
21M
21.00 mi13:33:072:42:257:448:16
8:16
#10488
35K
21.75 mi13:39:022:48:207:445:55
7:55
#10505
23M
23.00 mi13:49:072:58:257:4510:05
8:03
#10451
24M
24.00 mi13:56:553:06:137:467:48
7:48
#10416
40K
24.85 mi14:03:413:12:597:466:46
7:55
#10349
25.2M
25.20 mi14:06:373:15:557:462:56
8:30
#10329
Finish
26.22 mi14:14:343:23:527:477:57
7:48
#10317
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 mi132133557355710770(Top 40%)2217(Top 19%)2217(Top 45%)
10K6.21 mi3.10 mi12821+3923327+2303327+23012512(Top 47%)3151(Top 28%)3151(Top 65%)
15K9.32 mi3.11 mi12088+7332941+3862941+38610770(Top 40%)2217(Top 19%)2217(Top 45%)
20K12.43 mi3.11 mi11539+5492647+2942647+29410153(Top 38%)1987(Top 17%)1987(Top 41%)
Half13.11 mi0.68 mi11459+802599+482599+4810303(Top 39%)2036(Top 18%)2036(Top 42%)
25K15.53 mi2.42 mi11008+4512361+2382361+2388899(Top 33%)1525(Top 13%)1525(Top 31%)
30K18.64 mi3.11 mi10504+5042155+2062155+2068609(Top 32%)1560(Top 14%)1560(Top 32%)
20M20.00 mi1.36 mi10621-1172241-862241-8612101(Top 45%)3346(Top 29%)3346(Top 69%)
21M21.00 mi1.00 mi10488+1332199+422199+428961(Top 34%)1920(Top 17%)1920(Top 39%)
35K21.75 mi0.75 mi10505-172219-202219-2011467(Top 43%)3107(Top 27%)3107(Top 64%)
23M23.00 mi1.25 mi10451+542225-62225-610143(Top 38%)2570(Top 22%)2570(Top 53%)
24M24.00 mi1.00 mi10416+352237-122237-129821(Top 37%)2506(Top 22%)2506(Top 51%)
40K24.85 mi0.85 mi10349+672227+102227+109474(Top 36%)2389(Top 21%)2389(Top 49%)
25.2M25.20 mi0.35 mi10329+202232-52232-59633(Top 36%)2516(Top 22%)2516(Top 52%)
Finish26.22 mi1.02 mi10317+122253-212253-2110701(Top 40%)3033(Top 27%)3033(Top 62%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21story building
+97ft-345ft

Overall

10770

Females

2217

F18-39

2217

5K→10K

3.1 - 6.2 mi

Top 47%
×5story building
+79ft-138ft

Overall

12512

Females

3151

F18-39

3151

10K→15K

6.2 - 9.3 mi

Top 40%
×3story building
+67ft-78ft

Overall

10770

Females

2217

F18-39

2217

15K→20K

9.3 - 12.4 mi

Top 38%
×5story building
+106ft-86ft

Overall

10153

Females

1987

F18-39

1987

20K→Half

12.4 - 13.1 mi

Top 39%
×2story building
+19ft-37ft

Overall

10303

Females

2036

F18-39

2036

Half→25K

13.1 - 15.5 mi

Top 33%
×4story building
+66ft-88ft

Overall

8899

Females

1525

F18-39

1525

25K→30K

15.5 - 18.6 mi

Top 32%
×9story building
+181ft-148ft

Overall

8609

Females

1560

F18-39

1560

30K→20M

18.6 - 20.0 mi

Top 45%
×5story building
+64ft-50ft

Overall

12101

Females

3346

F18-39

3346

20M→21M

20.0 - 21.0 mi

Top 34%
×8story building
+106ft-24ft

Overall

8961

Females

1920

F18-39

1920

21M→35K

21.0 - 21.8 mi

Top 43%
×7story building
+17ft-86ft

Overall

11467

Females

3107

F18-39

3107

35K→23M

21.8 - 23.0 mi

Top 38%
×5story building
+23ft-63ft

Overall

10143

Females

2570

F18-39

2570

23M→24M

23.0 - 24.0 mi

Top 37%
×6story building
+12ft-82ft

Overall

9821

Females

2506

F18-39

2506

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

9474

Females

2389

F18-39

2389

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

9633

Females

2516

F18-39

2516

25.2M→Finish

25.2 - 26.2 mi

Top 40%
×2story building
+22ft-21ft

Overall

10701

Females

3033

F18-39

3033

Passing Analysis

Category:
Athletes Passed
3562*
Passed By
666
Net Change
+2896
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13213
5K → 10K555163+392#13213#12821
10K → 15K75118+733#12821#12088
15K → 20K56011+549#12088#11539
20K → Half844+80#11539#11459
Half → 25K4510+451#11459#11008
25K → 30K51612+504#11008#10504
30K → 20M46*163-117#10504#10621
20M → 21M15219+133#10621#10488
21M → 35K4057-17#10488#10505
35K → 23M10854+54#10505#10451
23M → 24M7843+35#10451#10416
24M → 40K10538+67#10416#10349
40K → 25.2M4222+20#10349#10329
25.2M → Finish7462+12#10329#10317
TOTALS3562*666+2896

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

📊

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