Boston Marathon logo
BOSTON MARATHON 2023

Kyra Shreeve

Bib: 12222•F

PA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 41%
Gender (Female)
#0 / 11423
Top 23%
Division (F18-39)
#0 / 4884
Top 39%
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
7:37/mi
23:40
↑ 97↓ 3451.5%
10K· 6.21 mi
7:33/mi
47:08
↑ 79↓ 1380.4%
15K· 9.32 mi
7:33/mi
1:10:36
↑ 67↓ 78
20K· 12.43 mi
7:44/mi
1:34:38
↑ 106↓ 860.1%
Half· 13.11 mi
7:45/mi
1:39:55
↑ 19↓ 370.5%
25K· 15.53 mi
7:47/mi
1:58:47
↑ 66↓ 880.2%
30K· 18.64 mi
8:03/mi
2:23:49
↑ 181↓ 1480.2%
20M
8:15/mi
2:35:01
↑ 64↓ 500.2%
21M
8:36/mi
2:43:37
↑ 106↓ 241.6%
35K· 21.75 mi
7:44/mi
2:49:24
↑ 17↓ 861.7%
23M
8:12/mi
2:59:40
↑ 23↓ 630.6%
24M
8:06/mi
3:07:46
↓ 821.3%
40K· 24.85 mi
8:17/mi
3:14:51
↓ 200.3%
25.2M
8:51/mi
3:17:54
↑ 13↓ 160.2%
Finish· 26.22 mi
8:10/mi
3:26:13
↑ 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
Time1:39:55
Pace7:37 /mi
2nd Half
Distance13.11 mi
Time1:46:18
Pace8:07 /mi
📊Positive Split: 6.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:1523:407:3723:40
7:37
-
10K
6.21 mi11:14:4347:087:3523:28
7:33
-0:04
15K
9.32 mi11:38:111:10:367:3423:28
7:33
0:00
20K
12.43 mi12:02:131:34:387:3724:02
7:44
+0:11
Half
13.11 mi12:07:301:39:557:375:17
7:45
+0:01
25K
15.53 mi12:26:221:58:477:3918:52
7:47
+0:02
30K
18.64 mi12:51:242:23:497:4325:02
8:03
+0:16
20M
20.00 mi13:02:362:35:017:4511:12
8:15
+0:12
21M
21.00 mi13:11:122:43:377:478:36
8:36
+0:21
35K
21.75 mi13:16:592:49:247:475:47
7:44
-0:52
23M
23.00 mi13:27:152:59:407:4910:16
8:12
+0:28
24M
24.00 mi13:35:213:07:467:498:06
8:06
-0:06
40K
24.85 mi13:42:263:14:517:507:05
8:17
+0:11
25.2M
25.20 mi13:45:293:17:547:513:03
8:51
+0:34
Finish
26.22 mi13:53:483:26:137:528:19
8:10
-0:41

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

7:33 /mi

Average Pace

7:52 /mi

Slowest Pace

8:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:14:34

94% of race

Time at Steady Pace

11:39

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:52 /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 mi10:51:1523:407:3723:40
7:37
#10707
10K
6.21 mi11:14:4347:087:3523:28
7:33
#10793
15K
9.32 mi11:38:111:10:367:3423:28
7:33
#10714
20K
12.43 mi12:02:131:34:387:3724:02
7:44
#10830
Half
13.11 mi12:07:301:39:557:375:17
7:45
#10912
25K
15.53 mi12:26:221:58:477:3918:52
7:47
#10880
30K
18.64 mi12:51:242:23:497:4325:02
8:03
#10886
20M
20.00 mi13:02:362:35:017:4511:12
8:15
#10937
21M
21.00 mi13:11:122:43:377:478:36
8:36
#10943
35K
21.75 mi13:16:592:49:247:475:47
7:44
#10893
23M
23.00 mi13:27:152:59:407:4910:16
8:12
#10891
24M
24.00 mi13:35:213:07:467:498:06
8:06
#10919
40K
24.85 mi13:42:263:14:517:507:05
8:17
#10954
25.2M
25.20 mi13:45:293:17:547:513:03
8:51
#10957
Finish
26.22 mi13:53:483:26:137:528:19
8:10
#11042
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi107072186218610621(Top 40%)2146(Top 19%)2146(Top 44%)
10K6.21 mi3.10 mi10793-862224-382224-3810922(Top 41%)2274(Top 20%)2274(Top 47%)
15K9.32 mi3.11 mi10714+792177+472177+4710621(Top 40%)2146(Top 19%)2146(Top 44%)
20K12.43 mi3.11 mi10830-1162258-812258-8111202(Top 42%)2513(Top 22%)2513(Top 51%)
Half13.11 mi0.68 mi10912-822294-362294-3612262(Top 46%)3054(Top 27%)3054(Top 63%)
25K15.53 mi2.42 mi10880+322290+42290+410961(Top 41%)2463(Top 22%)2463(Top 50%)
30K18.64 mi3.11 mi10886-62342-522342-5211356(Top 43%)2820(Top 25%)2820(Top 58%)
20M20.00 mi1.36 mi10937-512400-582400-5811964(Top 45%)3250(Top 28%)3250(Top 67%)
21M21.00 mi1.00 mi10943-62434-342434-3411069(Top 42%)2904(Top 25%)2904(Top 59%)
35K21.75 mi0.75 mi10893+502421+132421+1310193(Top 38%)2462(Top 22%)2462(Top 50%)
23M23.00 mi1.25 mi10891+22445-242445-2411196(Top 42%)3108(Top 27%)3108(Top 64%)
24M24.00 mi1.00 mi10919-282484-392484-3911955(Top 45%)3556(Top 31%)3556(Top 73%)
40K24.85 mi0.85 mi10954-352530-462530-4611932(Top 45%)3622(Top 32%)3622(Top 74%)
25.2M25.20 mi0.35 mi10957-32548-182548-1811611(Top 44%)3507(Top 31%)3507(Top 72%)
Finish26.22 mi1.02 mi11042-852615-672615-6713184(Top 50%)4293(Top 38%)4293(Top 88%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21story building
+97ft-345ft

Overall

10621

Females

2146

F18-39

2146

5K→10K

3.1 - 6.2 mi

Top 41%
×5story building
+79ft-138ft

Overall

10922

Females

2274

F18-39

2274

10K→15K

6.2 - 9.3 mi

Top 40%
×3story building
+67ft-78ft

Overall

10621

Females

2146

F18-39

2146

15K→20K

9.3 - 12.4 mi

Top 42%
×5story building
+106ft-86ft

Overall

11202

Females

2513

F18-39

2513

20K→Half

12.4 - 13.1 mi

Top 46%
×2story building
+19ft-37ft

Overall

12262

Females

3054

F18-39

3054

Half→25K

13.1 - 15.5 mi

Top 41%
×4story building
+66ft-88ft

Overall

10961

Females

2463

F18-39

2463

25K→30K

15.5 - 18.6 mi

Top 43%
×9story building
+181ft-148ft

Overall

11356

Females

2820

F18-39

2820

30K→20M

18.6 - 20.0 mi

Top 45%
×5story building
+64ft-50ft

Overall

11964

Females

3250

F18-39

3250

20M→21M

20.0 - 21.0 mi

Top 42%
×8story building
+106ft-24ft

Overall

11069

Females

2904

F18-39

2904

21M→35K

21.0 - 21.8 mi

Top 38%
×7story building
+17ft-86ft

Overall

10193

Females

2462

F18-39

2462

35K→23M

21.8 - 23.0 mi

Top 42%
×5story building
+23ft-63ft

Overall

11196

Females

3108

F18-39

3108

23M→24M

23.0 - 24.0 mi

Top 45%
×6story building
+12ft-82ft

Overall

11955

Females

3556

F18-39

3556

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

11932

Females

3622

F18-39

3622

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

11611

Females

3507

F18-39

3507

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2story building
+22ft-21ft

Overall

13184

Females

4293

F18-39

4293

Passing Analysis

Category:
Athletes Passed
1424*
Passed By
1759
Net Change
-335
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10707
5K → 10K258344-86#10707#10793
10K → 15K226147+79#10793#10714
15K → 20K122238-116#10714#10830
20K → Half688-82#10830#10912
Half → 25K133101+32#10912#10880
25K → 30K195201-6#10880#10886
30K → 20M64*115-51#10886#10937
20M → 21M7581-6#10937#10943
21M → 35K7323+50#10943#10893
35K → 23M8785+2#10893#10891
23M → 24M6189-28#10891#10919
24M → 40K4984-35#10919#10954
40K → 25.2M3336-3#10954#10957
25.2M → Finish42127-85#10957#11042
TOTALS1424*1759-335

* 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