Boston Marathon logo
BOSTON MARATHON 2023

Aubrey Aldy

Bib: 1823•M

FL

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 4%
Gender (Male)
#0 / 15176
Top 7%
Masters (Masters Men)
#0 / 9891
Top 2%
Division (M40-44)
#0 / 2241
Top 5%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:39
Rank: #1522
Start → 5K
19:39 | 6:19/mi
10K· 6.21 mi
38:59
Rank: #1462 (+60)
5K → 10K
19:20 | 6:13/mi
15K· 9.32 mi
58:13
Rank: #1357 (+105)
10K → 15K
19:14 | 6:11/mi
20K· 12.43 mi
1:17:36
Rank: #1291 (+66)
15K → 20K
19:23 | 6:14/mi
Half· 13.11 mi
1:21:47
Rank: #1270 (+21)
20K → Half
4:11 | 6:08/mi
25K· 15.53 mi
1:36:56
Rank: #1248 (+22)
Half → 25K
15:09 | 6:15/mi
30K· 18.64 mi
1:56:36
Rank: #1187 (+61)
25K → 30K
19:40 | 6:20/mi
20M
2:05:26
Rank: #1191 (-4)
30K → 20M
8:50 | 6:30/mi
21M
2:11:56
Rank: #1131 (+60)
20M → 21M
6:30 | 6:30/mi
35K· 21.75 mi
2:16:30
Rank: #1109 (+22)
21M → 35K
4:34 | 6:06/mi
23M
2:24:26
Rank: #1085 (+24)
35K → 23M
7:56 | 6:20/mi
24M
2:30:39
Rank: #1075 (+10)
23M → 24M
6:13 | 6:13/mi
40K· 24.85 mi
2:36:11
Rank: #1073 (+2)
24M → 40K
5:32 | 6:28/mi
25.2M
2:38:35
Rank: #1075 (-2)
40K → 25.2M
2:24 | 6:58/mi
Finish· 26.22 mi
2:45:04
Rank: #1088 (-13)
25.2M → Finish
6:29 | 6:22/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
Time1:21:47
Pace6:14 /mi
2nd Half
Distance13.11 mi
Time1:23:17
Pace6:21 /mi
📊Positive Split: 1.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:1419:396:1919:39
6:19
-
10K
6.21 mi10:39:3438:596:1619:20
6:13
-0:06
15K
9.32 mi10:58:4858:136:1519:14
6:11
-0:02
20K
12.43 mi11:18:111:17:366:1519:23
6:14
+0:03
Half
13.11 mi11:22:221:21:476:144:11
6:08
-0:06
25K
15.53 mi11:37:311:36:566:1415:09
6:15
+0:07
30K
18.64 mi11:57:111:56:366:1519:40
6:20
+0:05
20M
20.00 mi12:06:012:05:266:168:50
6:30
+0:10
21M
21.00 mi12:12:312:11:566:176:30
6:30
0:00
35K
21.75 mi12:17:052:16:306:174:34
6:06
-0:24
23M
23.00 mi12:25:012:24:266:177:56
6:20
+0:14
24M
24.00 mi12:31:142:30:396:176:13
6:13
-0:07
40K
24.85 mi12:36:462:36:116:175:32
6:28
+0:15
25.2M
25.20 mi12:39:102:38:356:182:24
6:58
+0:30
Finish
26.22 mi12:45:392:45:046:186:29
6:22
-0:36

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

6:06 /mi

Average Pace

6:18 /mi

Slowest Pace

6:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:42:40

99% of race

Time at Steady Pace

2:24

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:18 /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 mi10:20:1419:396:1919:39
6:19
#1522
10K
6.21 mi10:39:3438:596:1619:20
6:13
#1462
15K
9.32 mi10:58:4858:136:1519:14
6:11
#1357
20K
12.43 mi11:18:111:17:366:1519:23
6:14
#1291
Half
13.11 mi11:22:221:21:476:144:11
6:08
#1270
25K
15.53 mi11:37:311:36:566:1415:09
6:15
#1248
30K
18.64 mi11:57:111:56:366:1519:40
6:20
#1187
20M
20.00 mi12:06:012:05:266:168:50
6:30
#1191
21M
21.00 mi12:12:312:11:566:176:30
6:30
#1131
35K
21.75 mi12:17:052:16:306:174:34
6:06
#1109
23M
23.00 mi12:25:012:24:266:177:56
6:20
#1085
24M
24.00 mi12:31:142:30:396:176:13
6:13
#1075
40K
24.85 mi12:36:462:36:116:175:32
6:28
#1073
25.2M
25.20 mi12:39:102:38:356:182:24
6:58
#1075
Finish
26.22 mi12:45:392:45:046:186:29
6:22
#1088
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi1522144914491209(Top 5%)1152(Top 8%)1152(Top 51%)
10K6.21 mi3.10 mi1462+601394+551394+551431(Top 5%)1365(Top 9%)1365(Top 61%)
15K9.32 mi3.11 mi1357+1051293+1011293+1011209(Top 5%)1152(Top 8%)1152(Top 51%)
20K12.43 mi3.11 mi1291+661230+631230+631166(Top 4%)1113(Top 7%)1113(Top 50%)
Half13.11 mi0.68 mi1270+211211+191211+191114(Top 4%)1063(Top 7%)1063(Top 47%)
25K15.53 mi2.42 mi1248+221193+181193+181131(Top 4%)1078(Top 7%)1078(Top 48%)
30K18.64 mi3.11 mi1187+611132+611132+61996(Top 4%)947(Top 6%)947(Top 42%)
20M20.00 mi1.36 mi1191-41137-51137-51468(Top 6%)1397(Top 9%)1397(Top 62%)
21M21.00 mi1.00 mi1131+601078+591078+59635(Top 2%)597(Top 4%)597(Top 27%)
35K21.75 mi0.75 mi1109+221056+221056+22946(Top 4%)898(Top 6%)898(Top 40%)
23M23.00 mi1.25 mi1085+241033+231033+23926(Top 3%)881(Top 6%)881(Top 39%)
24M24.00 mi1.00 mi1075+101023+101023+101067(Top 4%)1009(Top 7%)1009(Top 45%)
40K24.85 mi0.85 mi1073+21021+21021+21431(Top 5%)1350(Top 9%)1350(Top 60%)
25.2M25.20 mi0.35 mi1075-21023-21023-21583(Top 6%)1489(Top 10%)1489(Top 66%)
Finish26.22 mi1.02 mi1088-131036-131036-131848(Top 7%)1726(Top 11%)1726(Top 77%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1209

Males

1152

M40-44

1152

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1431

Males

1365

M40-44

1365

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1209

Males

1152

M40-44

1152

15K→20K

9.3 - 12.4 mi

Top 4%
×5stories
+106ft-86ft

Overall

1166

Males

1113

M40-44

1113

20K→Half

12.4 - 13.1 mi

Top 4%
×2stories
+19ft-37ft

Overall

1114

Males

1063

M40-44

1063

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

1131

Males

1078

M40-44

1078

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

996

Males

947

M40-44

947

30K→20M

18.6 - 20.0 mi

Top 6%
×5stories
+64ft-50ft

Overall

1468

Males

1397

M40-44

1397

20M→21M

20.0 - 21.0 mi

Top 2%
×8stories
+106ft-24ft

Overall

635

Males

597

M40-44

597

21M→35K

21.0 - 21.8 mi

Top 4%
×7stories
+17ft-86ft

Overall

946

Males

898

M40-44

898

35K→23M

21.8 - 23.0 mi

Top 3%
×5stories
+23ft-63ft

Overall

926

Males

881

M40-44

881

23M→24M

23.0 - 24.0 mi

Top 4%
×6stories
+12ft-82ft

Overall

1067

Males

1009

M40-44

1009

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1431

Males

1350

M40-44

1350

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1583

Males

1489

M40-44

1489

25.2M→Finish

25.2 - 26.2 mi

Top 7%
×2stories
+22ft-21ft

Overall

1848

Males

1726

M40-44

1726

Passing Analysis

Category:
Athletes Passed
624
Passed By
190
Net Change
+434
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1522
5K → 10K11050+60#1522#1462
10K → 15K11510+105#1462#1357
15K → 20K8216+66#1357#1291
20K → Half221+21#1291#1270
Half → 25K3412+22#1270#1248
25K → 30K7413+61#1248#1187
30K → 20M1923-4#1187#1191
20M → 21M622+60#1191#1131
21M → 35K231+22#1131#1109
35K → 23M317+24#1109#1085
23M → 24M188+10#1085#1075
24M → 40K1715+2#1075#1073
40K → 25.2M57-2#1073#1075
25.2M → Finish1225-13#1075#1088
TOTALS624190+434
📊

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