Boston Marathon logo
BOSTON MARATHON 2023

Gregory King

Bib: 5336•M

CA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 18%
Gender (Male)
#0 / 15176
Top 30%
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:01
Rank: #4312
Start → 5K
21:01 | 6:46/mi
10K· 6.21 mi
41:54
Rank: #4409 (-97)
5K → 10K
20:53 | 6:43/mi
15K· 9.32 mi
1:02:45
Rank: #4344 (+65)
10K → 15K
20:51 | 6:43/mi
20K· 12.43 mi
1:23:37
Rank: #4154 (+190)
15K → 20K
20:52 | 6:43/mi
Half· 13.11 mi
1:28:11
Rank: #4155 (-1)
20K → Half
4:34 | 6:42/mi
25K· 15.53 mi
1:44:32
Rank: #4048 (+107)
Half → 25K
16:21 | 6:45/mi
30K· 18.64 mi
2:05:43
Rank: #3800 (+248)
25K → 30K
21:11 | 6:49/mi
20M
2:15:03
Rank: #3720 (+80)
30K → 20M
9:20 | 6:52/mi
21M
2:22:22
Rank: #3695 (+25)
20M → 21M
7:19 | 7:19/mi
35K· 21.75 mi
2:27:30
Rank: #3710 (-15)
21M → 35K
5:08 | 6:52/mi
23M
2:37:14
Rank: #4080 (-370)
35K → 23M
9:44 | 7:46/mi
24M
2:44:55
Rank: #4350 (-270)
23M → 24M
7:41 | 7:41/mi
40K· 24.85 mi
2:51:52
Rank: #4570 (-220)
24M → 40K
6:57 | 8:08/mi
25.2M
2:54:58
Rank: #4666 (-96)
40K → 25.2M
3:06 | 8:59/mi
Finish· 26.22 mi
3:03:09
Rank: #4864 (-198)
25.2M → Finish
8:11 | 8:02/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
Time1:28:11
Pace6:44 /mi
2nd Half
Distance13.11 mi
Time1:34:58
Pace7:15 /mi
📊Positive Split: 7.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:5121:016:4621:01
6:46
-
10K
6.21 mi10:44:4441:546:4520:53
6:43
-0:03
15K
9.32 mi11:05:351:02:456:4420:51
6:43
0:00
20K
12.43 mi11:26:271:23:376:4420:52
6:43
0:00
Half
13.11 mi11:31:011:28:116:444:34
6:42
-0:01
25K
15.53 mi11:47:221:44:326:4416:21
6:45
+0:03
30K
18.64 mi12:08:332:05:436:4521:11
6:49
+0:04
20M
20.00 mi12:17:532:15:036:459:20
6:52
+0:03
21M
21.00 mi12:25:122:22:226:477:19
7:19
+0:27
35K
21.75 mi12:30:202:27:306:475:08
6:52
-0:27
23M
23.00 mi12:40:042:37:146:509:44
7:46
+0:54
24M
24.00 mi12:47:452:44:556:527:41
7:41
-0:05
40K
24.85 mi12:54:422:51:526:556:57
8:08
+0:27
25.2M
25.20 mi12:57:482:54:586:573:06
8:59
+0:51
Finish
26.22 mi13:05:593:03:096:598:11
8:02
-0:57

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

6:42 /mi

Average Pace

6:59 /mi

Slowest Pace

8:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:20:11

77% of race

Time at Slower Pace

42:58

23% of race

Average Pace: 6:59 /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 mi10:23:5121:016:4621:01
6:46
#4312
10K
6.21 mi10:44:4441:546:4520:53
6:43
#4409
15K
9.32 mi11:05:351:02:456:4420:51
6:43
#4344
20K
12.43 mi11:26:271:23:376:4420:52
6:43
#4154
Half
13.11 mi11:31:011:28:116:444:34
6:42
#4155
25K
15.53 mi11:47:221:44:326:4416:21
6:45
#4048
30K
18.64 mi12:08:332:05:436:4521:11
6:49
#3800
20M
20.00 mi12:17:532:15:036:459:20
6:52
#3720
21M
21.00 mi12:25:122:22:226:477:19
7:19
#3695
35K
21.75 mi12:30:202:27:306:475:08
6:52
#3710
23M
23.00 mi12:40:042:37:146:509:44
7:46
#4080
24M
24.00 mi12:47:452:44:556:527:41
7:41
#4350
40K
24.85 mi12:54:422:51:526:556:57
8:08
#4570
25.2M
25.20 mi12:57:482:54:586:573:06
8:59
#4666
Finish
26.22 mi13:05:593:03:096:598:11
8:02
#4864
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4312403040304244(Top 16%)3981(Top 26%)3981(Top 75%)
10K6.21 mi3.10 mi4409-974128-984128-984566(Top 17%)4263(Top 28%)4263(Top 81%)
15K9.32 mi3.11 mi4344+654066+624066+624244(Top 16%)3981(Top 26%)3981(Top 75%)
20K12.43 mi3.11 mi4154+1903898+1683898+1683709(Top 14%)3508(Top 23%)3508(Top 66%)
Half13.11 mi0.68 mi4155-13900-23900-24318(Top 16%)4042(Top 27%)4042(Top 76%)
25K15.53 mi2.42 mi4048+1073805+953805+953708(Top 14%)3493(Top 23%)3493(Top 66%)
30K18.64 mi3.11 mi3800+2483585+2203585+2203114(Top 12%)2939(Top 19%)2939(Top 56%)
20M20.00 mi1.36 mi3720+803511+743511+743246(Top 12%)3043(Top 20%)3043(Top 58%)
21M21.00 mi1.00 mi3695+253490+213490+213716(Top 14%)3447(Top 23%)3447(Top 65%)
35K21.75 mi0.75 mi3710-153500-103500-104575(Top 17%)4166(Top 27%)4166(Top 79%)
23M23.00 mi1.25 mi4080-3703821-3213821-3218189(Top 31%)6507(Top 43%)6507(Top 123%)
24M24.00 mi1.00 mi4350-2704066-2454066-2458923(Top 34%)6837(Top 45%)6837(Top 129%)
40K24.85 mi0.85 mi4570-2204253-1874253-18710838(Top 41%)7745(Top 51%)7745(Top 147%)
25.2M25.20 mi0.35 mi4666-964327-744327-7412319(Top 46%)8382(Top 55%)8382(Top 159%)
Finish26.22 mi1.02 mi4864-1984482-1554482-15512292(Top 46%)8406(Top 55%)8406(Top 159%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4244

Males

3981

M18-39

3981

5K→10K

3.1 - 6.2 mi

Top 17%
×5stories
+79ft-138ft

Overall

4566

Males

4263

M18-39

4263

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4244

Males

3981

M18-39

3981

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

3709

Males

3508

M18-39

3508

20K→Half

12.4 - 13.1 mi

Top 16%
×2stories
+19ft-37ft

Overall

4318

Males

4042

M18-39

4042

Half→25K

13.1 - 15.5 mi

Top 14%
×4stories
+66ft-88ft

Overall

3708

Males

3493

M18-39

3493

25K→30K

15.5 - 18.6 mi

Top 12%
×9stories
+181ft-148ft

Overall

3114

Males

2939

M18-39

2939

30K→20M

18.6 - 20.0 mi

Top 12%
×5stories
+64ft-50ft

Overall

3246

Males

3043

M18-39

3043

20M→21M

20.0 - 21.0 mi

Top 14%
×8stories
+106ft-24ft

Overall

3716

Males

3447

M18-39

3447

21M→35K

21.0 - 21.8 mi

Top 17%
×7stories
+17ft-86ft

Overall

4575

Males

4166

M18-39

4166

35K→23M

21.8 - 23.0 mi

Top 31%
×5stories
+23ft-63ft

Overall

8189

Males

6507

M18-39

6507

23M→24M

23.0 - 24.0 mi

Top 34%
×6stories
+12ft-82ft

Overall

8923

Males

6837

M18-39

6837

24M→40K

24.0 - 24.9 mi

Top 41%
×1story
+6ft-20ft

Overall

10838

Males

7745

M18-39

7745

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

12319

Males

8382

M18-39

8382

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2stories
+22ft-21ft

Overall

12292

Males

8406

M18-39

8406

Passing Analysis

Category:
Athletes Passed
1203
Passed By
1755
Net Change
-552
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4312
5K → 10K174271-97#4312#4409
10K → 15K16196+65#4409#4344
15K → 20K20818+190#4344#4154
20K → Half1819-1#4154#4155
Half → 25K13225+107#4155#4048
25K → 30K26618+248#4048#3800
30K → 20M9919+80#3800#3720
20M → 21M7146+25#3720#3695
21M → 35K2540-15#3695#3710
35K → 23M9379-370#3710#4080
23M → 24M14284-270#4080#4350
24M → 40K15235-220#4350#4570
40K → 25.2M298-96#4570#4666
25.2M → Finish9207-198#4666#4864
TOTALS12031755-552
📊

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