Boston Marathon logo
BOSTON MARATHON 2023

David Taylor

Bib: 3193•M

UT

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 30%
Gender (Male)
#0 / 15176
Top 44%
Masters (Masters Men)
#0 / 9891
Top 31%
Division (M50-54)
#0 / 2052
Top 27%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:26
Rank: #2723
Start → 5K
20:26 | 6:35/mi
10K· 6.21 mi
40:17
Rank: #2408 (+315)
5K → 10K
19:51 | 6:23/mi
15K· 9.32 mi
1:03:02
Rank: #4638 (-2230)
10K → 15K
22:45 | 7:19/mi
20K· 12.43 mi
1:28:41
Rank: #7138 (-2500)
15K → 20K
25:39 | 8:15/mi
Half· 13.11 mi
1:32:57
Rank: #6880 (+258)
20K → Half
4:16 | 6:15/mi
25K· 15.53 mi
1:48:57
Rank: #6301 (+579)
Half → 25K
16:00 | 6:36/mi
30K· 18.64 mi
2:11:27
Rank: #6139 (+162)
25K → 30K
22:30 | 7:15/mi
20M
2:21:53
Rank: #6209 (-70)
30K → 20M
10:26 | 7:41/mi
21M
2:30:56
Rank: #6508 (-299)
20M → 21M
9:03 | 9:03/mi
35K· 21.75 mi
2:37:58
Rank: #6922 (-414)
21M → 35K
7:02 | 9:24/mi
23M
2:48:40
Rank: #7236 (-314)
35K → 23M
10:42 | 8:33/mi
24M
2:56:53
Rank: #7413 (-177)
23M → 24M
8:13 | 8:13/mi
40K· 24.85 mi
3:04:28
Rank: #7723 (-310)
24M → 40K
7:35 | 8:52/mi
25.2M
3:07:40
Rank: #7830 (-107)
40K → 25.2M
3:12 | 9:17/mi
Finish· 26.22 mi
3:15:39
Rank: #7916 (-86)
25.2M → Finish
7:59 | 7:50/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
Time1:32:57
Pace7:05 /mi
2nd Half
Distance13.11 mi
Time1:42:42
Pace7:50 /mi
📊Positive Split: 10.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:5920:266:3520:26
6:35
-
10K
6.21 mi10:41:5040:176:2919:51
6:23
-0:12
15K
9.32 mi11:04:351:03:026:4622:45
7:19
+0:56
20K
12.43 mi11:30:141:28:417:0825:39
8:15
+0:56
Half
13.11 mi11:34:301:32:577:054:16
6:15
-2:00
25K
15.53 mi11:50:301:48:577:0116:00
6:36
+0:21
30K
18.64 mi12:13:002:11:277:0322:30
7:15
+0:39
20M
20.00 mi12:23:262:21:537:0610:26
7:41
+0:26
21M
21.00 mi12:32:292:30:567:119:03
9:03
+1:22
35K
21.75 mi12:39:312:37:587:167:02
9:24
+0:21
23M
23.00 mi12:50:132:48:407:2010:42
8:33
-0:51
24M
24.00 mi12:58:262:56:537:228:13
8:13
-0:20
40K
24.85 mi13:06:013:04:287:257:35
8:52
+0:39
25.2M
25.20 mi13:09:133:07:407:273:12
9:17
+0:25
Finish
26.22 mi13:17:123:15:397:287:59
7:50
-1:27

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

6:15 /mi

Average Pace

7:28 /mi

Slowest Pace

9:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:23:03

42% of race

Time at Steady Pace

1:15:02

38% of race

Time at Slower Pace

37:34

19% of race

Average Pace: 7:28 /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 mi10:21:5920:266:3520:26
6:35
#2723
10K
6.21 mi10:41:5040:176:2919:51
6:23
#2408
15K
9.32 mi11:04:351:03:026:4622:45
7:19
#4638
20K
12.43 mi11:30:141:28:417:0825:39
8:15
#7138
Half
13.11 mi11:34:301:32:577:054:16
6:15
#6880
25K
15.53 mi11:50:301:48:577:0116:00
6:36
#6301
30K
18.64 mi12:13:002:11:277:0322:30
7:15
#6139
20M
20.00 mi12:23:262:21:537:0610:26
7:41
#6209
21M
21.00 mi12:32:292:30:567:119:03
9:03
#6508
35K
21.75 mi12:39:312:37:587:167:02
9:24
#6922
23M
23.00 mi12:50:132:48:407:2010:42
8:33
#7236
24M
24.00 mi12:58:262:56:537:228:13
8:13
#7413
40K
24.85 mi13:06:013:04:287:257:35
8:52
#7723
25.2M
25.20 mi13:09:133:07:407:273:12
9:17
#7830
Finish
26.22 mi13:17:123:15:397:287:59
7:50
#7916
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi2723259425948731(Top 33%)7380(Top 49%)7380(Top 360%)
10K6.21 mi3.10 mi2408+3152299+2952299+2952202(Top 8%)2110(Top 14%)2110(Top 103%)
15K9.32 mi3.11 mi4638-22304326-20274326-20278731(Top 33%)7380(Top 49%)7380(Top 360%)
20K12.43 mi3.11 mi7138-25006349-20236349-202315298(Top 57%)10379(Top 68%)10379(Top 506%)
Half13.11 mi0.68 mi6880+2586162+1876162+1871638(Top 6%)1573(Top 10%)1573(Top 77%)
25K15.53 mi2.42 mi6301+5795705+4575705+4572726(Top 10%)2610(Top 17%)2610(Top 127%)
30K18.64 mi3.11 mi6139+1625570+1355570+1355728(Top 22%)5170(Top 34%)5170(Top 252%)
20M20.00 mi1.36 mi6209-705610-405610-408005(Top 30%)6595(Top 43%)6595(Top 321%)
21M21.00 mi1.00 mi6508-2995818-2085818-20813652(Top 51%)9331(Top 61%)9331(Top 455%)
35K21.75 mi0.75 mi6922-4146127-3096127-30919503(Top 73%)11809(Top 78%)11809(Top 575%)
23M23.00 mi1.25 mi7236-3146315-1886315-18813477(Top 51%)9125(Top 60%)9125(Top 445%)
24M24.00 mi1.00 mi7413-1776412-976412-9712674(Top 48%)8689(Top 57%)8689(Top 423%)
40K24.85 mi0.85 mi7723-3106595-1836595-18315420(Top 58%)9853(Top 65%)9853(Top 480%)
25.2M25.20 mi0.35 mi7830-1076655-606655-6013973(Top 52%)9191(Top 61%)9191(Top 448%)
Finish26.22 mi1.02 mi7916-866682-276682-2710895(Top 41%)7732(Top 51%)7732(Top 377%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21stories
+97ft-345ft

Overall

8731

Males

7380

M50-54

7380

5K→10K

3.1 - 6.2 mi

Top 8%
×5stories
+79ft-138ft

Overall

2202

Males

2110

M50-54

2110

10K→15K

6.2 - 9.3 mi

Top 33%
×3stories
+67ft-78ft

Overall

8731

Males

7380

M50-54

7380

15K→20K

9.3 - 12.4 mi

Top 57%
×5stories
+106ft-86ft

Overall

15298

Males

10379

M50-54

10379

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1638

Males

1573

M50-54

1573

Half→25K

13.1 - 15.5 mi

Top 10%
×4stories
+66ft-88ft

Overall

2726

Males

2610

M50-54

2610

25K→30K

15.5 - 18.6 mi

Top 22%
×9stories
+181ft-148ft

Overall

5728

Males

5170

M50-54

5170

30K→20M

18.6 - 20.0 mi

Top 30%
×5stories
+64ft-50ft

Overall

8005

Males

6595

M50-54

6595

20M→21M

20.0 - 21.0 mi

Top 51%
×8stories
+106ft-24ft

Overall

13652

Males

9331

M50-54

9331

21M→35K

21.0 - 21.8 mi

Top 73%
×7stories
+17ft-86ft

Overall

19503

Males

11809

M50-54

11809

35K→23M

21.8 - 23.0 mi

Top 51%
×5stories
+23ft-63ft

Overall

13477

Males

9125

M50-54

9125

23M→24M

23.0 - 24.0 mi

Top 48%
×6stories
+12ft-82ft

Overall

12674

Males

8689

M50-54

8689

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

15420

Males

9853

M50-54

9853

40K→25.2M

24.9 - 25.2 mi

Top 52%
×1story
+13ft-16ft

Overall

13973

Males

9191

M50-54

9191

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2stories
+22ft-21ft

Overall

10895

Males

7732

M50-54

7732

Passing Analysis

Category:
Athletes Passed
1547
Passed By
6740
Net Change
-5193
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2723
5K → 10K34833+315#2723#2408
10K → 15K12231-2230#2408#4638
15K → 20K12501-2500#4638#7138
20K → Half2580+258#7138#6880
Half → 25K5790+579#6880#6301
25K → 30K19836+162#6301#6139
30K → 20M43113-70#6139#6209
20M → 21M12311-299#6209#6508
21M → 35K2416-414#6508#6922
35K → 23M26340-314#6922#7236
23M → 24M17194-177#7236#7413
24M → 40K16326-310#7413#7723
40K → 25.2M8115-107#7723#7830
25.2M → Finish38124-86#7830#7916
TOTALS15476740-5193
📊

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