Boston Marathon logo
BOSTON MARATHON 2023

Daniel Barron

Bib: 6406•M

TX

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 (M40-44)
#0 / 2241
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:03
Rank: #4442
Start → 5K
21:03 | 6:47/mi
10K· 6.21 mi
41:43
Rank: #4133 (+309)
5K → 10K
20:40 | 6:39/mi
15K· 9.32 mi
1:02:31
Rank: #4095 (+38)
10K → 15K
20:48 | 6:42/mi
20K· 12.43 mi
1:23:22
Rank: #3954 (+141)
15K → 20K
20:51 | 6:43/mi
Half· 13.11 mi
1:27:54
Rank: #3940 (+14)
20K → Half
4:32 | 6:39/mi
25K· 15.53 mi
1:44:10
Rank: #3832 (+108)
Half → 25K
16:16 | 6:43/mi
30K· 18.64 mi
2:05:43
Rank: #3802 (+30)
25K → 30K
21:33 | 6:56/mi
20M
2:16:02
Rank: #4173 (-371)
30K → 20M
10:19 | 7:36/mi
21M
2:24:39
Rank: #4646 (-473)
20M → 21M
8:37 | 8:37/mi
35K· 21.75 mi
2:30:15
Rank: #4774 (-128)
21M → 35K
5:36 | 7:29/mi
23M
2:40:45
Rank: #5165 (-391)
35K → 23M
10:30 | 8:23/mi
24M
2:49:51
Rank: #5604 (-439)
23M → 24M
9:06 | 9:06/mi
40K· 24.85 mi
3:00:45
Rank: #6679 (-1075)
24M → 40K
10:54 | 12:45/mi
25.2M
3:05:53
Rank: #7291 (-612)
40K → 25.2M
5:08 | 14:53/mi
Finish· 26.22 mi
3:17:28
Rank: #8454 (-1163)
25.2M → Finish
11:35 | 11:22/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
Time1:27:54
Pace6:42 /mi
2nd Half
Distance13.11 mi
Time1:49:34
Pace8:21 /mi
📊Positive Split: 24.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:4621:036:4721:03
6:47
-
10K
6.21 mi10:45:2641:436:4320:40
6:39
-0:08
15K
9.32 mi11:06:141:02:316:4220:48
6:42
+0:03
20K
12.43 mi11:27:051:23:226:4220:51
6:43
+0:01
Half
13.11 mi11:31:371:27:546:424:32
6:39
-0:04
25K
15.53 mi11:47:531:44:106:4216:16
6:43
+0:04
30K
18.64 mi12:09:262:05:436:4521:33
6:56
+0:13
20M
20.00 mi12:19:452:16:026:4810:19
7:36
+0:40
21M
21.00 mi12:28:222:24:396:538:37
8:37
+1:01
35K
21.75 mi12:33:582:30:156:555:36
7:29
-1:08
23M
23.00 mi12:44:282:40:456:5910:30
8:23
+0:54
24M
24.00 mi12:53:342:49:517:059:06
9:06
+0:43
40K
24.85 mi13:04:283:00:457:1610:54
12:45
+3:39
25.2M
25.20 mi13:09:363:05:537:235:08
14:53
+2:08
Finish
26.22 mi13:21:113:17:287:3211:35
11:22
-3:31

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

6:39 /mi

Average Pace

7:32 /mi

Slowest Pace

14:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:40:45

81% of race

Time at Slower Pace

36:43

19% 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 mi10:24:4621:036:4721:03
6:47
#4442
10K
6.21 mi10:45:2641:436:4320:40
6:39
#4133
15K
9.32 mi11:06:141:02:316:4220:48
6:42
#4095
20K
12.43 mi11:27:051:23:226:4220:51
6:43
#3954
Half
13.11 mi11:31:371:27:546:424:32
6:39
#3940
25K
15.53 mi11:47:531:44:106:4216:16
6:43
#3832
30K
18.64 mi12:09:262:05:436:4521:33
6:56
#3802
20M
20.00 mi12:19:452:16:026:4810:19
7:36
#4173
21M
21.00 mi12:28:222:24:396:538:37
8:37
#4646
35K
21.75 mi12:33:582:30:156:555:36
7:29
#4774
23M
23.00 mi12:44:282:40:456:5910:30
8:23
#5165
24M
24.00 mi12:53:342:49:517:059:06
9:06
#5604
40K
24.85 mi13:04:283:00:457:1610:54
12:45
#6679
25.2M
25.20 mi13:09:363:05:537:235:08
14:53
#7291
Finish
26.22 mi13:21:113:17:287:3211:35
11:22
#8454
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi4442415041504099(Top 15%)3848(Top 25%)3848(Top 172%)
10K6.21 mi3.10 mi4133+3093883+2673883+2673916(Top 15%)3689(Top 24%)3689(Top 165%)
15K9.32 mi3.11 mi4095+383849+343849+344099(Top 15%)3848(Top 25%)3848(Top 172%)
20K12.43 mi3.11 mi3954+1413720+1293720+1293677(Top 14%)3481(Top 23%)3481(Top 155%)
Half13.11 mi0.68 mi3940+143708+123708+123896(Top 15%)3680(Top 24%)3680(Top 164%)
25K15.53 mi2.42 mi3832+1083619+893619+893445(Top 13%)3266(Top 22%)3266(Top 146%)
30K18.64 mi3.11 mi3802+303587+323587+323917(Top 15%)3666(Top 24%)3666(Top 164%)
20M20.00 mi1.36 mi4173-3713914-3273914-3277438(Top 28%)6243(Top 41%)6243(Top 279%)
21M21.00 mi1.00 mi4646-4734327-4134327-41311111(Top 42%)8160(Top 54%)8160(Top 364%)
35K21.75 mi0.75 mi4774-1284439-1124439-1128418(Top 32%)6749(Top 44%)6749(Top 301%)
23M23.00 mi1.25 mi5165-3914747-3084747-30812462(Top 47%)8663(Top 57%)8663(Top 387%)
24M24.00 mi1.00 mi5604-4395104-3575104-35717641(Top 66%)10899(Top 72%)10899(Top 486%)
40K24.85 mi0.85 mi6679-10755894-7905894-79024712(Top 93%)14158(Top 93%)14158(Top 632%)
25.2M25.20 mi0.35 mi7291-6126305-4116305-41125622(Top 96%)14612(Top 96%)14612(Top 652%)
Finish26.22 mi1.02 mi8454-11637021-7167021-71624506(Top 92%)14074(Top 93%)14074(Top 628%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 15%
×21stories
+97ft-345ft

Overall

4099

Males

3848

M40-44

3848

5K→10K

3.1 - 6.2 mi

Top 15%
×5stories
+79ft-138ft

Overall

3916

Males

3689

M40-44

3689

10K→15K

6.2 - 9.3 mi

Top 15%
×3stories
+67ft-78ft

Overall

4099

Males

3848

M40-44

3848

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

3677

Males

3481

M40-44

3481

20K→Half

12.4 - 13.1 mi

Top 15%
×2stories
+19ft-37ft

Overall

3896

Males

3680

M40-44

3680

Half→25K

13.1 - 15.5 mi

Top 13%
×4stories
+66ft-88ft

Overall

3445

Males

3266

M40-44

3266

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

3917

Males

3666

M40-44

3666

30K→20M

18.6 - 20.0 mi

Top 28%
×5stories
+64ft-50ft

Overall

7438

Males

6243

M40-44

6243

20M→21M

20.0 - 21.0 mi

Top 42%
×8stories
+106ft-24ft

Overall

11111

Males

8160

M40-44

8160

21M→35K

21.0 - 21.8 mi

Top 32%
×7stories
+17ft-86ft

Overall

8418

Males

6749

M40-44

6749

35K→23M

21.8 - 23.0 mi

Top 47%
×5stories
+23ft-63ft

Overall

12462

Males

8663

M40-44

8663

23M→24M

23.0 - 24.0 mi

Top 66%
×6stories
+12ft-82ft

Overall

17641

Males

10899

M40-44

10899

24M→40K

24.0 - 24.9 mi

Top 93%
×1story
+6ft-20ft

Overall

24712

Males

14158

M40-44

14158

40K→25.2M

24.9 - 25.2 mi

Top 96%
×1story
+13ft-16ft

Overall

25622

Males

14612

M40-44

14612

25.2M→Finish

25.2 - 26.2 mi

Top 92%
×2stories
+22ft-21ft

Overall

24506

Males

14074

M40-44

14074

Passing Analysis

Category:
Athletes Passed
1086
Passed By
5098
Net Change
-4012
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4442
5K → 10K39889+309#4442#4133
10K → 15K147109+38#4133#4095
15K → 20K19049+141#4095#3954
20K → Half3016+14#3954#3940
Half → 25K14234+108#3940#3832
25K → 30K12191+30#3832#3802
30K → 20M8379-371#3802#4173
20M → 21M9482-473#4173#4646
21M → 35K20148-128#4646#4774
35K → 23M11402-391#4774#5165
23M → 24M8447-439#5165#5604
24M → 40K11076-1075#5604#6679
40K → 25.2M0612-612#6679#7291
25.2M → Finish11164-1163#7291#8454
TOTALS10865098-4012
📊

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