Boston Marathon logo
BOSTON MARATHON 2023

Keena Byrd-Moro

Bib: 9045•F

SD

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 31%
Gender (Female)
#0 / 11423
Top 12%
Division (F18-39)
#0 / 4884
Top 22%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:49
Rank: #8424
Start → 5K
22:49 | 7:21/mi
10K· 6.21 mi
45:59
Rank: #9187 (-763)
5K → 10K
23:10 | 7:27/mi
15K· 9.32 mi
1:09:03
Rank: #9255 (-68)
10K → 15K
23:04 | 7:25/mi
20K· 12.43 mi
1:32:21
Rank: #9256 (-1)
15K → 20K
23:18 | 7:30/mi
Half· 13.11 mi
1:37:27
Rank: #9288 (-32)
20K → Half
5:06 | 7:29/mi
25K· 15.53 mi
1:55:37
Rank: #9159 (+129)
Half → 25K
18:10 | 7:30/mi
30K· 18.64 mi
2:19:04
Rank: #8833 (+326)
25K → 30K
23:27 | 7:33/mi
20M
2:29:19
Rank: #8687 (+146)
30K → 20M
10:15 | 7:33/mi
21M
2:37:24
Rank: #8607 (+80)
20M → 21M
8:05 | 8:05/mi
35K· 21.75 mi
2:42:57
Rank: #8586 (+21)
21M → 35K
5:33 | 7:25/mi
23M
2:52:28
Rank: #8461 (+125)
35K → 23M
9:31 | 7:36/mi
24M
2:59:53
Rank: #8368 (+93)
23M → 24M
7:25 | 7:25/mi
40K· 24.85 mi
3:06:30
Rank: #8343 (+25)
24M → 40K
6:37 | 7:44/mi
25.2M
3:09:23
Rank: #8320 (+23)
40K → 25.2M
2:53 | 8:22/mi
Finish· 26.22 mi
3:17:04
Rank: #8317 (+3)
25.2M → Finish
7:41 | 7:32/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
Time1:37:27
Pace7:26 /mi
2nd Half
Distance13.11 mi
Time1:39:37
Pace7:36 /mi
📊Positive Split: 2.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:2022:497:2122:49
7:21
-
10K
6.21 mi11:11:3045:597:2423:10
7:27
+0:06
15K
9.32 mi11:34:341:09:037:2523:04
7:25
-0:02
20K
12.43 mi11:57:521:32:217:2623:18
7:30
+0:05
Half
13.11 mi12:02:581:37:277:265:06
7:29
-0:01
25K
15.53 mi12:21:081:55:377:2718:10
7:30
+0:01
30K
18.64 mi12:44:352:19:047:2823:27
7:33
+0:03
20M
20.00 mi12:54:502:29:197:2810:15
7:33
0:00
21M
21.00 mi13:02:552:37:247:308:05
8:05
+0:32
35K
21.75 mi13:08:282:42:577:305:33
7:25
-0:40
23M
23.00 mi13:17:592:52:287:309:31
7:36
+0:11
24M
24.00 mi13:25:242:59:537:307:25
7:25
-0:11
40K
24.85 mi13:32:013:06:307:306:37
7:44
+0:19
25.2M
25.20 mi13:34:543:09:237:312:53
8:22
+0:38
Finish
26.22 mi13:42:353:17:047:317:41
7:32
-0:50

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

7:21 /mi

Average Pace

7:31 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:14:11

99% of race

Time at Steady Pace

2:53

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:31 /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 mi10:48:2022:497:2122:49
7:21
#8424
10K
6.21 mi11:11:3045:597:2423:10
7:27
#9187
15K
9.32 mi11:34:341:09:037:2523:04
7:25
#9255
20K
12.43 mi11:57:521:32:217:2623:18
7:30
#9256
Half
13.11 mi12:02:581:37:277:265:06
7:29
#9288
25K
15.53 mi12:21:081:55:377:2718:10
7:30
#9159
30K
18.64 mi12:44:352:19:047:2823:27
7:33
#8833
20M
20.00 mi12:54:502:29:197:2810:15
7:33
#8687
21M
21.00 mi13:02:552:37:247:308:05
8:05
#8607
35K
21.75 mi13:08:282:42:577:305:33
7:25
#8586
23M
23.00 mi13:17:592:52:287:309:31
7:36
#8461
24M
24.00 mi13:25:242:59:537:307:25
7:25
#8368
40K
24.85 mi13:32:013:06:307:306:37
7:44
#8343
25.2M
25.20 mi13:34:543:09:237:312:53
8:22
#8320
Finish
26.22 mi13:42:353:17:047:317:41
7:32
#8317
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi8424116511659567(Top 36%)1648(Top 14%)1648(Top 34%)
10K6.21 mi3.10 mi9187-7631487-3221487-32210129(Top 38%)1877(Top 16%)1877(Top 38%)
15K9.32 mi3.11 mi9255-681524-371524-379567(Top 36%)1648(Top 14%)1648(Top 34%)
20K12.43 mi3.11 mi9256-11541-171541-179309(Top 35%)1601(Top 14%)1601(Top 33%)
Half13.11 mi0.68 mi9288-321552-111552-1110049(Top 38%)1885(Top 17%)1885(Top 39%)
25K15.53 mi2.42 mi9159+1291505+471505+478749(Top 33%)1450(Top 13%)1450(Top 30%)
30K18.64 mi3.11 mi8833+3261418+871418+877575(Top 28%)1134(Top 10%)1134(Top 23%)
20M20.00 mi1.36 mi8687+1461388+301388+307117(Top 27%)1067(Top 9%)1067(Top 22%)
21M21.00 mi1.00 mi8607+801376+121376+127927(Top 30%)1486(Top 13%)1486(Top 30%)
35K21.75 mi0.75 mi8586+211380-41380-47972(Top 30%)1479(Top 13%)1479(Top 30%)
23M23.00 mi1.25 mi8461+1251356+241356+247122(Top 27%)1219(Top 11%)1219(Top 25%)
24M24.00 mi1.00 mi8368+931339+171339+177191(Top 27%)1361(Top 12%)1361(Top 28%)
40K24.85 mi0.85 mi8343+251350-111350-118263(Top 31%)1845(Top 16%)1845(Top 38%)
25.2M25.20 mi0.35 mi8320+231351-11351-18706(Top 33%)2109(Top 18%)2109(Top 43%)
Finish26.22 mi1.02 mi8317+31377-261377-268858(Top 33%)2171(Top 19%)2171(Top 44%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21stories
+97ft-345ft

Overall

9567

Females

1648

F18-39

1648

5K→10K

3.1 - 6.2 mi

Top 38%
×5stories
+79ft-138ft

Overall

10129

Females

1877

F18-39

1877

10K→15K

6.2 - 9.3 mi

Top 36%
×3stories
+67ft-78ft

Overall

9567

Females

1648

F18-39

1648

15K→20K

9.3 - 12.4 mi

Top 35%
×5stories
+106ft-86ft

Overall

9309

Females

1601

F18-39

1601

20K→Half

12.4 - 13.1 mi

Top 38%
×2stories
+19ft-37ft

Overall

10049

Females

1885

F18-39

1885

Half→25K

13.1 - 15.5 mi

Top 33%
×4stories
+66ft-88ft

Overall

8749

Females

1450

F18-39

1450

25K→30K

15.5 - 18.6 mi

Top 28%
×9stories
+181ft-148ft

Overall

7575

Females

1134

F18-39

1134

30K→20M

18.6 - 20.0 mi

Top 27%
×5stories
+64ft-50ft

Overall

7117

Females

1067

F18-39

1067

20M→21M

20.0 - 21.0 mi

Top 30%
×8stories
+106ft-24ft

Overall

7927

Females

1486

F18-39

1486

21M→35K

21.0 - 21.8 mi

Top 30%
×7stories
+17ft-86ft

Overall

7972

Females

1479

F18-39

1479

35K→23M

21.8 - 23.0 mi

Top 27%
×5stories
+23ft-63ft

Overall

7122

Females

1219

F18-39

1219

23M→24M

23.0 - 24.0 mi

Top 27%
×6stories
+12ft-82ft

Overall

7191

Females

1361

F18-39

1361

24M→40K

24.0 - 24.9 mi

Top 31%
×1story
+6ft-20ft

Overall

8263

Females

1845

F18-39

1845

40K→25.2M

24.9 - 25.2 mi

Top 33%
×1story
+13ft-16ft

Overall

8706

Females

2109

F18-39

2109

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2stories
+22ft-21ft

Overall

8858

Females

2171

F18-39

2171

Passing Analysis

Category:
Athletes Passed
1640
Passed By
1533
Net Change
+107
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8424
5K → 10K59822-763#8424#9187
10K → 15K123191-68#9187#9255
15K → 20K144145-1#9255#9256
20K → Half1951-32#9256#9288
Half → 25K17546+129#9288#9159
25K → 30K36236+326#9159#8833
30K → 20M16216+146#8833#8687
20M → 21M11333+80#8687#8607
21M → 35K5130+21#8607#8586
35K → 23M14520+125#8586#8461
23M → 24M11421+93#8461#8368
24M → 40K6237+25#8368#8343
40K → 25.2M4118+23#8343#8320
25.2M → Finish7067+3#8320#8317
TOTALS16401533+107
📊

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