Boston Marathon logo
BOSTON MARATHON 2023

Andy Crawford

Bib: 1071•M

CA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 5%
Gender (Male)
#0 / 15176
Top 9%
Masters (Masters Men)
#0 / 9891
Top 2%
Division (M40-44)
#0 / 2241
Top 7%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:43
Rank: #1609
Start → 5K
19:43 | 6:21/mi
10K· 6.21 mi
39:23
Rank: #1735 (-126)
5K → 10K
19:40 | 6:20/mi
15K· 9.32 mi
58:57
Rank: #1688 (+47)
10K → 15K
19:34 | 6:18/mi
20K· 12.43 mi
1:18:38
Rank: #1647 (+41)
15K → 20K
19:41 | 6:20/mi
Half· 13.11 mi
1:22:53
Rank: #1632 (+15)
20K → Half
4:15 | 6:14/mi
25K· 15.53 mi
1:38:22
Rank: #1609 (+23)
Half → 25K
15:29 | 6:23/mi
30K· 18.64 mi
1:58:46
Rank: #1629 (-20)
25K → 30K
20:24 | 6:34/mi
20M
2:07:46
Rank: #1638 (-9)
30K → 20M
9:00 | 6:37/mi
21M
2:14:40
Rank: #1621 (+17)
20M → 21M
6:54 | 6:54/mi
35K· 21.75 mi
2:19:25
Rank: #1612 (+9)
21M → 35K
4:45 | 6:21/mi
23M
2:27:30
Rank: #1574 (+38)
35K → 23M
8:05 | 6:27/mi
24M
2:33:42
Rank: #1526 (+48)
23M → 24M
6:12 | 6:12/mi
40K· 24.85 mi
2:39:04
Rank: #1479 (+47)
24M → 40K
5:22 | 6:17/mi
25.2M
2:41:21
Rank: #1457 (+22)
40K → 25.2M
2:17 | 6:37/mi
Finish· 26.22 mi
2:47:32
Rank: #1411 (+46)
25.2M → Finish
6:11 | 6:04/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
Time1:22:53
Pace6:19 /mi
2nd Half
Distance13.11 mi
Time1:24:39
Pace6:27 /mi
📊Positive Split: 2.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:0919:436:2119:43
6:21
-
10K
6.21 mi10:39:4939:236:2019:40
6:20
-0:01
15K
9.32 mi10:59:2358:576:1919:34
6:18
-0:02
20K
12.43 mi11:19:041:18:386:2019:41
6:20
+0:02
Half
13.11 mi11:23:191:22:536:194:15
6:14
-0:06
25K
15.53 mi11:38:481:38:226:2015:29
6:23
+0:09
30K
18.64 mi11:59:121:58:466:2220:24
6:34
+0:11
20M
20.00 mi12:08:122:07:466:239:00
6:37
+0:03
21M
21.00 mi12:15:062:14:406:256:54
6:54
+0:17
35K
21.75 mi12:19:512:19:256:254:45
6:21
-0:33
23M
23.00 mi12:27:562:27:306:258:05
6:27
+0:06
24M
24.00 mi12:34:082:33:426:246:12
6:12
-0:15
40K
24.85 mi12:39:302:39:046:245:22
6:17
+0:05
25.2M
25.20 mi12:41:472:41:216:242:17
6:37
+0:20
Finish
26.22 mi12:47:582:47:326:246:11
6:04
-0:33

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

6:04 /mi

Average Pace

6:24 /mi

Slowest Pace

6:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:40:38

96% of race

Time at Steady Pace

6:54

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:23 /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 mi10:20:0919:436:2119:43
6:21
#1609
10K
6.21 mi10:39:4939:236:2019:40
6:20
#1735
15K
9.32 mi10:59:2358:576:1919:34
6:18
#1688
20K
12.43 mi11:19:041:18:386:2019:41
6:20
#1647
Half
13.11 mi11:23:191:22:536:194:15
6:14
#1632
25K
15.53 mi11:38:481:38:226:2015:29
6:23
#1609
30K
18.64 mi11:59:121:58:466:2220:24
6:34
#1629
20M
20.00 mi12:08:122:07:466:239:00
6:37
#1638
21M
21.00 mi12:15:062:14:406:256:54
6:54
#1621
35K
21.75 mi12:19:512:19:256:254:45
6:21
#1612
23M
23.00 mi12:27:562:27:306:258:05
6:27
#1574
24M
24.00 mi12:34:082:33:426:246:12
6:12
#1526
40K
24.85 mi12:39:302:39:046:245:22
6:17
#1479
25.2M
25.20 mi12:41:472:41:216:242:17
6:37
#1457
Finish
26.22 mi12:47:582:47:326:246:11
6:04
#1411
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi1609153315331637(Top 6%)1563(Top 10%)1563(Top 70%)
10K6.21 mi3.10 mi1735-1261658-1251658-1251890(Top 7%)1809(Top 12%)1809(Top 81%)
15K9.32 mi3.11 mi1688+471614+441614+441637(Top 6%)1563(Top 10%)1563(Top 70%)
20K12.43 mi3.11 mi1647+411576+381576+381541(Top 6%)1472(Top 10%)1472(Top 66%)
Half13.11 mi0.68 mi1632+151561+151561+151491(Top 6%)1427(Top 9%)1427(Top 64%)
25K15.53 mi2.42 mi1609+231541+201541+201661(Top 6%)1591(Top 10%)1591(Top 71%)
30K18.64 mi3.11 mi1629-201559-181559-181814(Top 7%)1737(Top 11%)1737(Top 78%)
20M20.00 mi1.36 mi1638-91566-71566-71939(Top 7%)1849(Top 12%)1849(Top 83%)
21M21.00 mi1.00 mi1621+171550+161550+161749(Top 7%)1662(Top 11%)1662(Top 74%)
35K21.75 mi0.75 mi1612+91541+91541+91726(Top 6%)1639(Top 11%)1639(Top 73%)
23M23.00 mi1.25 mi1574+381504+371504+371288(Top 5%)1219(Top 8%)1219(Top 54%)
24M24.00 mi1.00 mi1526+481457+471457+471032(Top 4%)978(Top 6%)978(Top 44%)
40K24.85 mi0.85 mi1479+471411+461411+46841(Top 3%)797(Top 5%)797(Top 36%)
25.2M25.20 mi0.35 mi1457+221390+211390+21726(Top 3%)691(Top 5%)691(Top 31%)
Finish26.22 mi1.02 mi1411+461344+461344+46904(Top 3%)864(Top 6%)864(Top 39%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21stories
+97ft-345ft

Overall

1637

Males

1563

M40-44

1563

5K→10K

3.1 - 6.2 mi

Top 7%
×5stories
+79ft-138ft

Overall

1890

Males

1809

M40-44

1809

10K→15K

6.2 - 9.3 mi

Top 6%
×3stories
+67ft-78ft

Overall

1637

Males

1563

M40-44

1563

15K→20K

9.3 - 12.4 mi

Top 6%
×5stories
+106ft-86ft

Overall

1541

Males

1472

M40-44

1472

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1491

Males

1427

M40-44

1427

Half→25K

13.1 - 15.5 mi

Top 6%
×4stories
+66ft-88ft

Overall

1661

Males

1591

M40-44

1591

25K→30K

15.5 - 18.6 mi

Top 7%
×9stories
+181ft-148ft

Overall

1814

Males

1737

M40-44

1737

30K→20M

18.6 - 20.0 mi

Top 7%
×5stories
+64ft-50ft

Overall

1939

Males

1849

M40-44

1849

20M→21M

20.0 - 21.0 mi

Top 7%
×8stories
+106ft-24ft

Overall

1749

Males

1662

M40-44

1662

21M→35K

21.0 - 21.8 mi

Top 6%
×7stories
+17ft-86ft

Overall

1726

Males

1639

M40-44

1639

35K→23M

21.8 - 23.0 mi

Top 5%
×5stories
+23ft-63ft

Overall

1288

Males

1219

M40-44

1219

23M→24M

23.0 - 24.0 mi

Top 4%
×6stories
+12ft-82ft

Overall

1032

Males

978

M40-44

978

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

841

Males

797

M40-44

797

40K→25.2M

24.9 - 25.2 mi

Top 3%
×1story
+13ft-16ft

Overall

726

Males

691

M40-44

691

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2stories
+22ft-21ft

Overall

904

Males

864

M40-44

864

Passing Analysis

Category:
Athletes Passed
601
Passed By
403
Net Change
+198
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1609
5K → 10K45171-126#1609#1735
10K → 15K7831+47#1735#1688
15K → 20K7130+41#1688#1647
20K → Half216+15#1647#1632
Half → 25K4724+23#1632#1609
25K → 30K4464-20#1609#1629
30K → 20M1625-9#1629#1638
20M → 21M3316+17#1638#1621
21M → 35K167+9#1621#1612
35K → 23M5113+38#1612#1574
23M → 24M535+48#1574#1526
24M → 40K514+47#1526#1479
40K → 25.2M253+22#1479#1457
25.2M → Finish504+46#1457#1411
TOTALS601403+198
📊

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