Boston Marathon logo
BOSTON MARATHON 2024

Brian O'Connor

Bib: 1398•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 25550
Top 5%
Gender (Male)
#0 / 14578
Top 9%
Masters (Masters Men)
#0 / 9729
Top 3%
Division (M45-49)
#0 / 2218
Top 3%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:47
Rank: #1061
Start → 5K
18:47 | 6:03/mi
10K· 6.21 mi
37:38
Rank: #1038 (+23)
5K → 10K
18:51 | 6:04/mi
15K· 9.32 mi
56:27
Rank: #981 (+57)
10K → 15K
18:49 | 6:03/mi
20K· 12.43 mi
1:15:30
Rank: #946 (+35)
15K → 20K
19:03 | 6:08/mi
Half· 13.11 mi
1:19:42
Rank: #949 (-3)
20K → Half
4:12 | 6:09/mi
25K· 15.53 mi
1:35:08
Rank: #987 (-38)
Half → 25K
15:26 | 6:22/mi
30K· 18.64 mi
1:56:10
Rank: #1078 (-91)
25K → 30K
21:02 | 6:46/mi
20M
2:05:55
Rank: #1157 (-79)
30K → 20M
9:45 | 7:10/mi
21M
2:13:38
Rank: #1216 (-59)
20M → 21M
7:43 | 7:43/mi
35K· 21.75 mi
2:18:51
Rank: #1244 (-28)
21M → 35K
5:13 | 6:58/mi
23M
2:27:48
Rank: #1272 (-28)
35K → 23M
8:57 | 7:09/mi
24M
2:34:43
Rank: #1288 (-16)
23M → 24M
6:55 | 6:55/mi
40K· 24.85 mi
2:40:53
Rank: #1313 (-25)
24M → 40K
6:10 | 7:13/mi
25.2M
2:43:33
Rank: #1314 (-1)
40K → 25.2M
2:40 | 7:44/mi
Finish· 26.22 mi
2:50:40
Rank: #1339 (-25)
25.2M → Finish
7:07 | 6:59/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
Time1:19:42
Pace6:05 /mi
2nd Half
Distance13.11 mi
Time1:30:58
Pace6:56 /mi
📊Positive Split: 14.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:0918:476:0318:47
6:03
-
10K
6.21 mi10:38:0037:386:0318:51
6:04
+0:01
15K
9.32 mi10:56:4956:276:0318:49
6:03
-0:01
20K
12.43 mi11:15:521:15:306:0519:03
6:08
+0:05
Half
13.11 mi11:20:041:19:426:054:12
6:09
+0:01
25K
15.53 mi11:35:301:35:086:0715:26
6:22
+0:13
30K
18.64 mi11:56:321:56:106:1421:02
6:46
+0:24
20M
20.00 mi12:06:172:05:556:189:45
7:10
+0:24
21M
21.00 mi12:14:002:13:386:227:43
7:43
+0:33
35K
21.75 mi12:19:132:18:516:235:13
6:58
-0:45
23M
23.00 mi12:28:102:27:486:268:57
7:09
+0:11
24M
24.00 mi12:35:052:34:436:276:55
6:55
-0:14
40K
24.85 mi12:41:152:40:536:286:10
7:13
+0:18
25.2M
25.20 mi12:43:552:43:336:292:40
7:44
+0:31
Finish
26.22 mi12:51:022:50:406:317:07
6:59
-0:45

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

6:03 /mi

Average Pace

6:31 /mi

Slowest Pace

7:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:35:08

56% of race

Time at Steady Pace

58:59

35% of race

Time at Slower Pace

16:33

10% of race

Average Pace: 6:31 /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 mi10:19:0918:476:0318:47
6:03
#1061
10K
6.21 mi10:38:0037:386:0318:51
6:04
#1038
15K
9.32 mi10:56:4956:276:0318:49
6:03
#981
20K
12.43 mi11:15:521:15:306:0519:03
6:08
#946
Half
13.11 mi11:20:041:19:426:054:12
6:09
#949
25K
15.53 mi11:35:301:35:086:0715:26
6:22
#987
30K
18.64 mi11:56:321:56:106:1421:02
6:46
#1078
20M
20.00 mi12:06:172:05:556:189:45
7:10
#1157
21M
21.00 mi12:14:002:13:386:227:43
7:43
#1216
35K
21.75 mi12:19:132:18:516:235:13
6:58
#1244
23M
23.00 mi12:28:102:27:486:268:57
7:09
#1272
24M
24.00 mi12:35:052:34:436:276:55
6:55
#1288
40K
24.85 mi12:41:152:40:536:286:10
7:13
#1313
25.2M
25.20 mi12:43:552:43:336:292:40
7:44
#1314
Finish
26.22 mi12:51:022:50:406:317:07
6:59
#1339
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi106110241024917(Top 4%)889(Top 6%)889(Top 40%)
10K6.21 mi3.10 mi1038+231000+241000+241069(Top 4%)1032(Top 7%)1032(Top 47%)
15K9.32 mi3.11 mi981+57945+55945+55917(Top 4%)889(Top 6%)889(Top 40%)
20K12.43 mi3.11 mi946+35911+34911+34882(Top 3%)849(Top 6%)849(Top 38%)
Half13.11 mi0.68 mi949-3914-3914-31175(Top 5%)1139(Top 8%)1139(Top 51%)
25K15.53 mi2.42 mi987-38952-38952-381332(Top 5%)1286(Top 9%)1286(Top 58%)
30K18.64 mi3.11 mi1078-911040-881040-881812(Top 7%)1720(Top 12%)1720(Top 78%)
20M20.00 mi1.36 mi1157-791115-751115-753029(Top 12%)2764(Top 19%)2764(Top 125%)
21M21.00 mi1.00 mi1216-591172-571172-573174(Top 12%)2837(Top 19%)2837(Top 128%)
35K21.75 mi0.75 mi1244-281198-261198-262926(Top 11%)2635(Top 18%)2635(Top 119%)
23M23.00 mi1.25 mi1272-281223-251223-252388(Top 9%)2152(Top 15%)2152(Top 97%)
24M24.00 mi1.00 mi1288-161238-151238-152032(Top 8%)1837(Top 13%)1837(Top 83%)
40K24.85 mi0.85 mi1313-251260-221260-222502(Top 10%)2185(Top 15%)2185(Top 99%)
25.2M25.20 mi0.35 mi1314-11259+11259+11955(Top 8%)1723(Top 12%)1723(Top 78%)
Finish26.22 mi1.02 mi1339-251283-241283-243046(Top 12%)2545(Top 17%)2545(Top 115%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 4%
×21stories
+97ft-345ft

Overall

917

Males

889

M45-49

889

5K→10K

3.1 - 6.2 mi

Top 4%
×5stories
+79ft-138ft

Overall

1069

Males

1032

M45-49

1032

10K→15K

6.2 - 9.3 mi

Top 4%
×3stories
+67ft-78ft

Overall

917

Males

889

M45-49

889

15K→20K

9.3 - 12.4 mi

Top 3%
×5stories
+106ft-86ft

Overall

882

Males

849

M45-49

849

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1175

Males

1139

M45-49

1139

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1332

Males

1286

M45-49

1286

25K→30K

15.5 - 18.6 mi

Top 7%
×9stories
+181ft-148ft

Overall

1812

Males

1720

M45-49

1720

30K→20M

18.6 - 20.0 mi

Top 12%
×5stories
+64ft-50ft

Overall

3029

Males

2764

M45-49

2764

20M→21M

20.0 - 21.0 mi

Top 12%
×8stories
+106ft-24ft

Overall

3174

Males

2837

M45-49

2837

21M→35K

21.0 - 21.8 mi

Top 11%
×7stories
+17ft-86ft

Overall

2926

Males

2635

M45-49

2635

35K→23M

21.8 - 23.0 mi

Top 9%
×5stories
+23ft-63ft

Overall

2388

Males

2152

M45-49

2152

23M→24M

23.0 - 24.0 mi

Top 8%
×6stories
+12ft-82ft

Overall

2032

Males

1837

M45-49

1837

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2502

Males

2185

M45-49

2185

40K→25.2M

24.9 - 25.2 mi

Top 8%
×1story
+13ft-16ft

Overall

1955

Males

1723

M45-49

1723

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2stories
+22ft-21ft

Overall

3046

Males

2545

M45-49

2545

Passing Analysis

Category:
Athletes Passed
419
Passed By
697
Net Change
-278
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1061
5K → 10K6946+23#1061#1038
10K → 15K7417+57#1038#981
15K → 20K6227+35#981#946
20K → Half811-3#946#949
Half → 25K3068-38#949#987
25K → 30K37128-91#987#1078
30K → 20M25104-79#1078#1157
20M → 21M1473-59#1157#1216
21M → 35K1543-28#1216#1244
35K → 23M2452-28#1244#1272
23M → 24M2238-16#1272#1288
24M → 40K1439-25#1288#1313
40K → 25.2M89-1#1313#1314
25.2M → Finish1742-25#1314#1339
TOTALS419697-278
📊

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