Boston Marathon logo
BOSTON MARATHON 2023

Clay Kimrey

Bib: 4418•M

TX

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 5%
Gender (Male)
#0 / 15176
Top 8%
Division (M18-39)
#0 / 5285
Top 18%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:17
Rank: #1149
Start → 5K
19:17 | 6:12/mi
10K· 6.21 mi
38:06
Rank: #1036 (+113)
5K → 10K
18:49 | 6:03/mi
15K· 9.32 mi
57:03
Rank: #1015 (+21)
10K → 15K
18:57 | 6:06/mi
20K· 12.43 mi
1:16:08
Rank: #981 (+34)
15K → 20K
19:05 | 6:09/mi
Half· 13.11 mi
1:20:13
Rank: #964 (+17)
20K → Half
4:05 | 5:59/mi
25K· 15.53 mi
1:35:00
Rank: #914 (+50)
Half → 25K
14:47 | 6:06/mi
30K· 18.64 mi
1:54:18
Rank: #850 (+64)
25K → 30K
19:18 | 6:13/mi
20M
2:02:51
Rank: #837 (+13)
30K → 20M
8:33 | 6:18/mi
21M
2:09:34
Rank: #833 (+4)
20M → 21M
6:43 | 6:43/mi
35K· 21.75 mi
2:14:13
Rank: #850 (-17)
21M → 35K
4:39 | 6:13/mi
23M
2:22:36
Rank: #878 (-28)
35K → 23M
8:23 | 6:42/mi
24M
2:29:16
Rank: #908 (-30)
23M → 24M
6:40 | 6:40/mi
40K· 24.85 mi
2:35:17
Rank: #968 (-60)
24M → 40K
6:01 | 7:02/mi
25.2M
2:38:14
Rank: #1029 (-61)
40K → 25.2M
2:57 | 8:33/mi
Finish· 26.22 mi
2:46:04
Rank: #1209 (-180)
25.2M → Finish
7:50 | 7:41/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
Time1:20:13
Pace6:07 /mi
2nd Half
Distance13.11 mi
Time1:25:51
Pace6:33 /mi
📊Positive Split: 7.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:5619:176:1219:17
6:12
-
10K
6.21 mi10:39:4538:066:0818:49
6:03
-0:09
15K
9.32 mi10:58:4257:036:0718:57
6:06
+0:03
20K
12.43 mi11:17:471:16:086:0819:05
6:09
+0:03
Half
13.11 mi11:21:521:20:136:074:05
5:59
-0:10
25K
15.53 mi11:36:391:35:006:0714:47
6:06
+0:07
30K
18.64 mi11:55:571:54:186:0819:18
6:13
+0:07
20M
20.00 mi12:04:302:02:516:098:33
6:18
+0:05
21M
21.00 mi12:11:132:09:346:106:43
6:43
+0:25
35K
21.75 mi12:15:522:14:136:104:39
6:13
-0:30
23M
23.00 mi12:24:152:22:366:128:23
6:42
+0:29
24M
24.00 mi12:30:552:29:166:136:40
6:40
-0:02
40K
24.85 mi12:36:562:35:176:156:01
7:02
+0:22
25.2M
25.20 mi12:39:532:38:146:172:57
8:33
+1:31
Finish
26.22 mi12:47:432:46:046:207:50
7:41
-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

5:59 /mi

Average Pace

6:20 /mi

Slowest Pace

8:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:07:30

77% of race

Time at Slower Pace

38:34

23% of race

Average Pace: 6:20 /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 mi10:20:5619:176:1219:17
6:12
#1149
10K
6.21 mi10:39:4538:066:0818:49
6:03
#1036
15K
9.32 mi10:58:4257:036:0718:57
6:06
#1015
20K
12.43 mi11:17:471:16:086:0819:05
6:09
#981
Half
13.11 mi11:21:521:20:136:074:05
5:59
#964
25K
15.53 mi11:36:391:35:006:0714:47
6:06
#914
30K
18.64 mi11:55:571:54:186:0819:18
6:13
#850
20M
20.00 mi12:04:302:02:516:098:33
6:18
#837
21M
21.00 mi12:11:132:09:346:106:43
6:43
#833
35K
21.75 mi12:15:522:14:136:104:39
6:13
#850
23M
23.00 mi12:24:152:22:366:128:23
6:42
#878
24M
24.00 mi12:30:552:29:166:136:40
6:40
#908
40K
24.85 mi12:36:562:35:176:156:01
7:02
#968
25.2M
25.20 mi12:39:532:38:146:172:57
8:33
#1029
Finish
26.22 mi12:47:432:46:046:207:50
7:41
#1209
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi114910871087974(Top 4%)925(Top 6%)925(Top 18%)
10K6.21 mi3.10 mi1036+113980+107980+107958(Top 4%)909(Top 6%)909(Top 17%)
15K9.32 mi3.11 mi1015+21962+18962+18974(Top 4%)925(Top 6%)925(Top 18%)
20K12.43 mi3.11 mi981+34931+31931+31892(Top 3%)847(Top 6%)847(Top 16%)
Half13.11 mi0.68 mi964+17914+17914+17743(Top 3%)702(Top 5%)702(Top 13%)
25K15.53 mi2.42 mi914+50866+48866+48741(Top 3%)700(Top 5%)700(Top 13%)
30K18.64 mi3.11 mi850+64805+61805+61710(Top 3%)673(Top 4%)673(Top 13%)
20M20.00 mi1.36 mi837+13792+13792+13863(Top 3%)822(Top 5%)822(Top 16%)
21M21.00 mi1.00 mi833+4788+4788+41138(Top 4%)1084(Top 7%)1084(Top 21%)
35K21.75 mi0.75 mi850-17805-17805-171287(Top 5%)1224(Top 8%)1224(Top 23%)
23M23.00 mi1.25 mi878-28832-27832-272144(Top 8%)2024(Top 13%)2024(Top 38%)
24M24.00 mi1.00 mi908-30861-29861-292882(Top 11%)2674(Top 18%)2674(Top 51%)
40K24.85 mi0.85 mi968-60919-58919-583985(Top 15%)3567(Top 24%)3567(Top 67%)
25.2M25.20 mi0.35 mi1029-61978-59978-599729(Top 37%)7115(Top 47%)7115(Top 135%)
Finish26.22 mi1.02 mi1209-1801152-1741152-1749839(Top 37%)7184(Top 47%)7184(Top 136%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 4%
×21stories
+97ft-345ft

Overall

974

Males

925

M18-39

925

5K→10K

3.1 - 6.2 mi

Top 4%
×5stories
+79ft-138ft

Overall

958

Males

909

M18-39

909

10K→15K

6.2 - 9.3 mi

Top 4%
×3stories
+67ft-78ft

Overall

974

Males

925

M18-39

925

15K→20K

9.3 - 12.4 mi

Top 3%
×5stories
+106ft-86ft

Overall

892

Males

847

M18-39

847

20K→Half

12.4 - 13.1 mi

Top 3%
×2stories
+19ft-37ft

Overall

743

Males

702

M18-39

702

Half→25K

13.1 - 15.5 mi

Top 3%
×4stories
+66ft-88ft

Overall

741

Males

700

M18-39

700

25K→30K

15.5 - 18.6 mi

Top 3%
×9stories
+181ft-148ft

Overall

710

Males

673

M18-39

673

30K→20M

18.6 - 20.0 mi

Top 3%
×5stories
+64ft-50ft

Overall

863

Males

822

M18-39

822

20M→21M

20.0 - 21.0 mi

Top 4%
×8stories
+106ft-24ft

Overall

1138

Males

1084

M18-39

1084

21M→35K

21.0 - 21.8 mi

Top 5%
×7stories
+17ft-86ft

Overall

1287

Males

1224

M18-39

1224

35K→23M

21.8 - 23.0 mi

Top 8%
×5stories
+23ft-63ft

Overall

2144

Males

2024

M18-39

2024

23M→24M

23.0 - 24.0 mi

Top 11%
×6stories
+12ft-82ft

Overall

2882

Males

2674

M18-39

2674

24M→40K

24.0 - 24.9 mi

Top 15%
×1story
+6ft-20ft

Overall

3985

Males

3567

M18-39

3567

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

9729

Males

7115

M18-39

7115

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×2stories
+22ft-21ft

Overall

9839

Males

7184

M18-39

7184

Passing Analysis

Category:
Athletes Passed
405
Passed By
465
Net Change
-60
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1149
5K → 10K12916+113#1149#1036
10K → 15K3918+21#1036#1015
15K → 20K4612+34#1015#981
20K → Half170+17#981#964
Half → 25K511+50#964#914
25K → 30K695+64#914#850
30K → 20M207+13#850#837
20M → 21M1511+4#837#833
21M → 35K219-17#833#850
35K → 23M937-28#850#878
23M → 24M737-30#878#908
24M → 40K161-60#908#968
40K → 25.2M061-61#968#1029
25.2M → Finish0180-180#1029#1209
TOTALS405465-60
📊

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