Boston Marathon logo
BOSTON MARATHON 2023

Timothy Dailey

Bib: 6646•M

IN

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 7%
Gender (Male)
#0 / 15176
Top 11%
Masters (Masters Men)
#0 / 9891
Top 3%
Division (M40-44)
#0 / 2241
Top 10%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:54
Rank: #1834
Start → 5K
19:54 | 6:24/mi
10K· 6.21 mi
39:34
Rank: #1837 (-3)
5K → 10K
19:40 | 6:20/mi
15K· 9.32 mi
59:12
Rank: #1800 (+37)
10K → 15K
19:38 | 6:19/mi
20K· 12.43 mi
1:19:15
Rank: #1836 (-36)
15K → 20K
20:03 | 6:27/mi
Half· 13.11 mi
1:23:33
Rank: #1827 (+9)
20K → Half
4:18 | 6:18/mi
25K· 15.53 mi
1:39:09
Rank: #1821 (+6)
Half → 25K
15:36 | 6:26/mi
30K· 18.64 mi
1:59:43
Rank: #1838 (-17)
25K → 30K
20:34 | 6:37/mi
20M
2:08:41
Rank: #1825 (+13)
30K → 20M
8:58 | 6:36/mi
21M
2:15:49
Rank: #1852 (-27)
20M → 21M
7:08 | 7:08/mi
35K· 21.75 mi
2:20:35
Rank: #1840 (+12)
21M → 35K
4:46 | 6:22/mi
23M
2:28:52
Rank: #1817 (+23)
35K → 23M
8:17 | 6:37/mi
24M
2:35:16
Rank: #1788 (+29)
23M → 24M
6:24 | 6:24/mi
40K· 24.85 mi
2:40:55
Rank: #1776 (+12)
24M → 40K
5:39 | 6:36/mi
25.2M
2:43:26
Rank: #1790 (-14)
40K → 25.2M
2:31 | 7:18/mi
Finish· 26.22 mi
2:50:03
Rank: #1796 (-6)
25.2M → Finish
6:37 | 6:30/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
Time1:23:33
Pace6:22 /mi
2nd Half
Distance13.11 mi
Time1:26:30
Pace6:36 /mi
📊Positive Split: 3.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:1519:546:2419:54
6:24
-
10K
6.21 mi10:42:5539:346:2219:40
6:20
-0:04
15K
9.32 mi11:02:3359:126:2119:38
6:19
-0:01
20K
12.43 mi11:22:361:19:156:2320:03
6:27
+0:08
Half
13.11 mi11:26:541:23:336:224:18
6:18
-0:09
25K
15.53 mi11:42:301:39:096:2315:36
6:26
+0:08
30K
18.64 mi12:03:041:59:436:2520:34
6:37
+0:11
20M
20.00 mi12:12:022:08:416:268:58
6:36
-0:01
21M
21.00 mi12:19:102:15:496:287:08
7:08
+0:32
35K
21.75 mi12:23:562:20:356:284:46
6:22
-0:46
23M
23.00 mi12:32:132:28:526:288:17
6:37
+0:15
24M
24.00 mi12:38:372:35:166:286:24
6:24
-0:13
40K
24.85 mi12:44:162:40:556:285:39
6:36
+0:12
25.2M
25.20 mi12:46:472:43:266:292:31
7:18
+0:42
Finish
26.22 mi12:53:242:50:036:296:37
6:30
-0:48

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

6:18 /mi

Average Pace

6:29 /mi

Slowest Pace

7:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:40:24

94% of race

Time at Steady Pace

9:39

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:29 /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 mi10:23:1519:546:2419:54
6:24
#1834
10K
6.21 mi10:42:5539:346:2219:40
6:20
#1837
15K
9.32 mi11:02:3359:126:2119:38
6:19
#1800
20K
12.43 mi11:22:361:19:156:2320:03
6:27
#1836
Half
13.11 mi11:26:541:23:336:224:18
6:18
#1827
25K
15.53 mi11:42:301:39:096:2315:36
6:26
#1821
30K
18.64 mi12:03:041:59:436:2520:34
6:37
#1838
20M
20.00 mi12:12:022:08:416:268:58
6:36
#1825
21M
21.00 mi12:19:102:15:496:287:08
7:08
#1852
35K
21.75 mi12:23:562:20:356:284:46
6:22
#1840
23M
23.00 mi12:32:132:28:526:288:17
6:37
#1817
24M
24.00 mi12:38:372:35:166:286:24
6:24
#1788
40K
24.85 mi12:44:162:40:556:285:39
6:36
#1776
25.2M
25.20 mi12:46:472:43:266:292:31
7:18
#1790
Finish
26.22 mi12:53:242:50:036:296:37
6:30
#1796
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi1834174917491736(Top 7%)1662(Top 11%)1662(Top 74%)
10K6.21 mi3.10 mi1837-31757-81757-81893(Top 7%)1812(Top 12%)1812(Top 81%)
15K9.32 mi3.11 mi1800+371721+361721+361736(Top 7%)1662(Top 11%)1662(Top 74%)
20K12.43 mi3.11 mi1836-361757-361757-362051(Top 8%)1970(Top 13%)1970(Top 88%)
Half13.11 mi0.68 mi1827+91748+91748+91782(Top 7%)1711(Top 11%)1711(Top 76%)
25K15.53 mi2.42 mi1821+61741+71741+71874(Top 7%)1796(Top 12%)1796(Top 80%)
30K18.64 mi3.11 mi1838-171759-181759-182031(Top 8%)1940(Top 13%)1940(Top 87%)
20M20.00 mi1.36 mi1825+131744+151744+151839(Top 7%)1752(Top 12%)1752(Top 78%)
21M21.00 mi1.00 mi1852-271772-281772-282731(Top 10%)2565(Top 17%)2565(Top 114%)
35K21.75 mi0.75 mi1840+121759+131759+131842(Top 7%)1748(Top 12%)1748(Top 78%)
23M23.00 mi1.25 mi1817+231738+211738+211823(Top 7%)1727(Top 11%)1727(Top 77%)
24M24.00 mi1.00 mi1788+291709+291709+291669(Top 6%)1577(Top 10%)1577(Top 70%)
40K24.85 mi0.85 mi1776+121698+111698+111938(Top 7%)1820(Top 12%)1820(Top 81%)
25.2M25.20 mi0.35 mi1790-141711-131711-132863(Top 11%)2618(Top 17%)2618(Top 117%)
Finish26.22 mi1.02 mi1796-61715-41715-42422(Top 9%)2230(Top 15%)2230(Top 100%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21stories
+97ft-345ft

Overall

1736

Males

1662

M40-44

1662

5K→10K

3.1 - 6.2 mi

Top 7%
×5stories
+79ft-138ft

Overall

1893

Males

1812

M40-44

1812

10K→15K

6.2 - 9.3 mi

Top 7%
×3stories
+67ft-78ft

Overall

1736

Males

1662

M40-44

1662

15K→20K

9.3 - 12.4 mi

Top 8%
×5stories
+106ft-86ft

Overall

2051

Males

1970

M40-44

1970

20K→Half

12.4 - 13.1 mi

Top 7%
×2stories
+19ft-37ft

Overall

1782

Males

1711

M40-44

1711

Half→25K

13.1 - 15.5 mi

Top 7%
×4stories
+66ft-88ft

Overall

1874

Males

1796

M40-44

1796

25K→30K

15.5 - 18.6 mi

Top 8%
×9stories
+181ft-148ft

Overall

2031

Males

1940

M40-44

1940

30K→20M

18.6 - 20.0 mi

Top 7%
×5stories
+64ft-50ft

Overall

1839

Males

1752

M40-44

1752

20M→21M

20.0 - 21.0 mi

Top 10%
×8stories
+106ft-24ft

Overall

2731

Males

2565

M40-44

2565

21M→35K

21.0 - 21.8 mi

Top 7%
×7stories
+17ft-86ft

Overall

1842

Males

1748

M40-44

1748

35K→23M

21.8 - 23.0 mi

Top 7%
×5stories
+23ft-63ft

Overall

1823

Males

1727

M40-44

1727

23M→24M

23.0 - 24.0 mi

Top 6%
×6stories
+12ft-82ft

Overall

1669

Males

1577

M40-44

1577

24M→40K

24.0 - 24.9 mi

Top 7%
×1story
+6ft-20ft

Overall

1938

Males

1820

M40-44

1820

40K→25.2M

24.9 - 25.2 mi

Top 11%
×1story
+13ft-16ft

Overall

2863

Males

2618

M40-44

2618

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2stories
+22ft-21ft

Overall

2422

Males

2230

M40-44

2230

Passing Analysis

Category:
Athletes Passed
551
Passed By
513
Net Change
+38
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1834
5K → 10K9396-3#1834#1837
10K → 15K8245+37#1837#1800
15K → 20K4076-36#1800#1836
20K → Half167+9#1836#1827
Half → 25K3125+6#1827#1821
25K → 30K4966-17#1821#1838
30K → 20M4229+13#1838#1825
20M → 21M1744-27#1825#1852
21M → 35K2412+12#1852#1840
35K → 23M4926+23#1840#1817
23M → 24M389+29#1817#1788
24M → 40K3018+12#1788#1776
40K → 25.2M1327-14#1776#1790
25.2M → Finish2733-6#1790#1796
TOTALS551513+38
📊

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