Boston Marathon logo
BOSTON MARATHON 2023

Dan Gritton

Bib: 7007•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 32%
Gender (Male)
#0 / 15176
Top 46%
Masters (Masters Men)
#0 / 9891
Top 34%
Division (M50-54)
#0 / 2052
Top 30%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:35
Rank: #5919
Start → 5K
21:35 | 6:57/mi
10K· 6.21 mi
42:59
Rank: #5956 (-37)
5K → 10K
21:24 | 6:53/mi
15K· 9.32 mi
1:04:47
Rank: #6200 (-244)
10K → 15K
21:48 | 7:01/mi
20K· 12.43 mi
1:27:02
Rank: #6369 (-169)
15K → 20K
22:15 | 7:10/mi
Half· 13.11 mi
1:31:40
Rank: #6320 (+49)
20K → Half
4:38 | 6:47/mi
25K· 15.53 mi
1:49:32
Rank: #6507 (-187)
Half → 25K
17:52 | 7:22/mi
30K· 18.64 mi
2:13:53
Rank: #6887 (-380)
25K → 30K
24:21 | 7:50/mi
20M
2:24:28
Rank: #6961 (-74)
30K → 20M
10:35 | 7:47/mi
21M
2:32:57
Rank: #7070 (-109)
20M → 21M
8:29 | 8:29/mi
35K· 21.75 mi
2:38:21
Rank: #7031 (+39)
21M → 35K
5:24 | 7:13/mi
23M
2:49:14
Rank: #7395 (-364)
35K → 23M
10:53 | 8:42/mi
24M
2:57:22
Rank: #7555 (-160)
23M → 24M
8:08 | 8:08/mi
40K· 24.85 mi
3:07:01
Rank: #8503 (-948)
24M → 40K
9:39 | 11:17/mi
25.2M
3:09:57
Rank: #8515 (-12)
40K → 25.2M
2:56 | 8:30/mi
Finish· 26.22 mi
3:17:28
Rank: #8451 (+64)
25.2M → Finish
7:31 | 7:23/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
Time1:31:40
Pace7:00 /mi
2nd Half
Distance13.11 mi
Time1:45:48
Pace8:04 /mi
📊Positive Split: 15.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:2621:356:5721:35
6:57
-
10K
6.21 mi10:47:5042:596:5521:24
6:53
-0:04
15K
9.32 mi11:09:381:04:476:5721:48
7:01
+0:08
20K
12.43 mi11:31:531:27:027:0022:15
7:10
+0:09
Half
13.11 mi11:36:311:31:407:004:38
6:47
-0:23
25K
15.53 mi11:54:231:49:327:0317:52
7:22
+0:35
30K
18.64 mi12:18:442:13:537:1124:21
7:50
+0:28
20M
20.00 mi12:29:192:24:287:1310:35
7:47
-0:03
21M
21.00 mi12:37:482:32:577:178:29
8:29
+0:42
35K
21.75 mi12:43:122:38:217:175:24
7:13
-1:16
23M
23.00 mi12:54:052:49:147:2110:53
8:42
+1:29
24M
24.00 mi13:02:132:57:227:238:08
8:08
-0:34
40K
24.85 mi13:11:523:07:017:319:39
11:17
+3:09
25.2M
25.20 mi13:14:483:09:577:322:56
8:30
-2:47
Finish
26.22 mi13:22:193:17:287:327:31
7:23
-1:07

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

6:47 /mi

Average Pace

7:32 /mi

Slowest Pace

11:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

4:38

2% of race

Time at Steady Pace

2:32:45

77% of race

Time at Slower Pace

40:05

20% of race

Average Pace: 7:32 /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 mi10:26:2621:356:5721:35
6:57
#5919
10K
6.21 mi10:47:5042:596:5521:24
6:53
#5956
15K
9.32 mi11:09:381:04:476:5721:48
7:01
#6200
20K
12.43 mi11:31:531:27:027:0022:15
7:10
#6369
Half
13.11 mi11:36:311:31:407:004:38
6:47
#6320
25K
15.53 mi11:54:231:49:327:0317:52
7:22
#6507
30K
18.64 mi12:18:442:13:537:1124:21
7:50
#6887
20M
20.00 mi12:29:192:24:287:1310:35
7:47
#6961
21M
21.00 mi12:37:482:32:577:178:29
8:29
#7070
35K
21.75 mi12:43:122:38:217:175:24
7:13
#7031
23M
23.00 mi12:54:052:49:147:2110:53
8:42
#7395
24M
24.00 mi13:02:132:57:227:238:08
8:08
#7555
40K
24.85 mi13:11:523:07:017:319:39
11:17
#8503
25.2M
25.20 mi13:14:483:09:577:322:56
8:30
#8515
Finish
26.22 mi13:22:193:17:287:327:31
7:23
#8451
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi5919542454246663(Top 25%)5987(Top 39%)5987(Top 292%)
10K6.21 mi3.10 mi5956-375451-275451-276045(Top 23%)5500(Top 36%)5500(Top 268%)
15K9.32 mi3.11 mi6200-2445635-1845635-1846663(Top 25%)5987(Top 39%)5987(Top 292%)
20K12.43 mi3.11 mi6369-1695761-1265761-1266874(Top 26%)6118(Top 40%)6118(Top 298%)
Half13.11 mi0.68 mi6320+495721+405721+405256(Top 20%)4866(Top 32%)4866(Top 237%)
25K15.53 mi2.42 mi6507-1875857-1365857-1367757(Top 29%)6645(Top 44%)6645(Top 324%)
30K18.64 mi3.11 mi6887-3806128-2716128-2719633(Top 36%)7629(Top 50%)7629(Top 372%)
20M20.00 mi1.36 mi6961-746178-506178-508745(Top 33%)7043(Top 46%)7043(Top 343%)
21M21.00 mi1.00 mi7070-1096243-656243-6510354(Top 39%)7774(Top 51%)7774(Top 379%)
35K21.75 mi0.75 mi7031+396208+356208+356643(Top 25%)5680(Top 37%)5680(Top 277%)
23M23.00 mi1.25 mi7395-3646412-2046412-20414307(Top 54%)9486(Top 63%)9486(Top 462%)
24M24.00 mi1.00 mi7555-1606503-916503-9112110(Top 45%)8436(Top 56%)8436(Top 411%)
40K24.85 mi0.85 mi8503-9487083-5807083-58022861(Top 86%)13244(Top 87%)13244(Top 645%)
25.2M25.20 mi0.35 mi8515-12708370839479(Top 36%)7005(Top 46%)7005(Top 341%)
Finish26.22 mi1.02 mi8451+647018+657018+657612(Top 29%)5941(Top 39%)5941(Top 290%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 25%
×21stories
+97ft-345ft

Overall

6663

Males

5987

M50-54

5987

5K→10K

3.1 - 6.2 mi

Top 23%
×5stories
+79ft-138ft

Overall

6045

Males

5500

M50-54

5500

10K→15K

6.2 - 9.3 mi

Top 25%
×3stories
+67ft-78ft

Overall

6663

Males

5987

M50-54

5987

15K→20K

9.3 - 12.4 mi

Top 26%
×5stories
+106ft-86ft

Overall

6874

Males

6118

M50-54

6118

20K→Half

12.4 - 13.1 mi

Top 20%
×2stories
+19ft-37ft

Overall

5256

Males

4866

M50-54

4866

Half→25K

13.1 - 15.5 mi

Top 29%
×4stories
+66ft-88ft

Overall

7757

Males

6645

M50-54

6645

25K→30K

15.5 - 18.6 mi

Top 36%
×9stories
+181ft-148ft

Overall

9633

Males

7629

M50-54

7629

30K→20M

18.6 - 20.0 mi

Top 33%
×5stories
+64ft-50ft

Overall

8745

Males

7043

M50-54

7043

20M→21M

20.0 - 21.0 mi

Top 39%
×8stories
+106ft-24ft

Overall

10354

Males

7774

M50-54

7774

21M→35K

21.0 - 21.8 mi

Top 25%
×7stories
+17ft-86ft

Overall

6643

Males

5680

M50-54

5680

35K→23M

21.8 - 23.0 mi

Top 54%
×5stories
+23ft-63ft

Overall

14307

Males

9486

M50-54

9486

23M→24M

23.0 - 24.0 mi

Top 45%
×6stories
+12ft-82ft

Overall

12110

Males

8436

M50-54

8436

24M→40K

24.0 - 24.9 mi

Top 86%
×1story
+6ft-20ft

Overall

22861

Males

13244

M50-54

13244

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

9479

Males

7005

M50-54

7005

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2stories
+22ft-21ft

Overall

7612

Males

5941

M50-54

5941

Passing Analysis

Category:
Athletes Passed
688
Passed By
3220
Net Change
-2532
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5919
5K → 10K178215-37#5919#5956
10K → 15K44288-244#5956#6200
15K → 20K51220-169#6200#6369
20K → Half512+49#6369#6320
Half → 25K32219-187#6320#6507
25K → 30K38418-380#6507#6887
30K → 20M33107-74#6887#6961
20M → 21M34143-109#6961#7070
21M → 35K5718+39#7070#7031
35K → 23M26390-364#7031#7395
23M → 24M22182-160#7395#7555
24M → 40K1949-948#7555#8503
40K → 25.2M2335-12#8503#8515
25.2M → Finish9834+64#8515#8451
TOTALS6883220-2532
📊

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