Boston Marathon logo
BOSTON MARATHON 2023

Alistair Bunting

Bib: 10881 M GB

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 19%
Gender (Male)
#0 / 15176
Top 30%
Masters (Masters Men)
#0 / 9891
Top 16%
Division (M45-49)
#0 / 2252
Top 19%
Race Day Weather
49°/39°F
light intensity drizzle

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:02/mi
21:51
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
6:47/mi
42:56
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
6:49/mi
1:04:06
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
6:50/mi
1:25:20
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
6:45/mi
1:29:56
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
6:52/mi
1:46:34
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:02/mi
2:08:25
↑ 181↓ 1480.2%
138 ft elev
20M
7:10/mi
2:18:10
↑ 64↓ 500.2%
148 ft elev
21M
7:40/mi
2:25:50
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
6:45/mi
2:30:53
↑ 17↓ 861.7%
156 ft elev
23M
7:08/mi
2:39:49
↑ 23↓ 630.6%
116 ft elev
24M
6:58/mi
2:46:47
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:21/mi
2:53:04
↓ 200.3%
20 ft elev
25.2M
8:04/mi
2:55:51
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:35/mi
3:03:35
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:29:566:52 /mi⚡ faster
2nd Half
1:33:397:09 /mi+4.1%
Positive split — 4.1% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
21:517:023.11 mi21:51
7:02
-
10K
42:566:553.10 mi21:05
6:47
-0:15
15K
1:04:066:533.11 mi21:10
6:49
+0:02
20K
1:25:206:523.11 mi21:14
6:50
+0:01
Half(13.11 mi)
1:29:566:520.68 mi4:36
6:45
-0:05
25K
1:46:346:522.42 mi16:38
6:52
+0:07
30K
2:08:256:533.11 mi21:51
7:02
+0:10
20M
2:18:106:541.36 mi9:45
7:10
+0:08
21M
2:25:506:571.00 mi7:40
7:40
+0:30
35K
2:30:536:560.75 mi5:03
6:45
-0:55
23M
2:39:496:571.25 mi8:56
7:08
+0:23
24M
2:46:476:571.00 mi6:58
6:58
-0:10
40K
2:53:046:580.85 mi6:17
7:21
+0:23
25.2M
2:55:516:590.35 mi2:47
8:04
+0:43
Finish(26.22 mi)
3:03:357:001.02 mi7:44
7:35
-0:29
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

6:45 /mi

Average Pace

7:00 /mi

Slowest Pace

8:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:45:24

90% of race

Time at Steady Pace

15:24

8% of race

Time at Slower Pace

2:47

2% of race

Average Pace: 7:00 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi644258405840524748514851
10K3.10 mi5885+5575394+4465394+446514647604760
15K3.11 mi5686+1995225+1695225+169524748514851
20K3.11 mi5460+2265039+1865039+186476844304430
Half(13.11 mi)0.68 mi5433+275022+175022+17476944314431
25K2.42 mi5281+1524891+1314891+131466943444344
30K3.11 mi5077+2044708+1834708+183457042324232
20M1.36 mi5046+314674+344674+34497645224522
21M1.00 mi5055-94675-14675-1543047834783
35K0.75 mi4984+714610+654610+65390135953595
23M1.25 mi4907+774543+674543+67448740734073
24M1.00 mi4853+544494+494494+49450540664066
40K0.85 mi4863-104488+64488+6572048364836
25.2M0.35 mi4871-84493-54493-5681954515451
Finish(26.22 mi)1.02 mi4966-954567-744567-74915968296829

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21story building
+97ft-345ft

Overall

5247

Males

4851

M45-49

4851

5K→10K

3.1 - 6.2 mi

Top 19%
×5story building
+79ft-138ft

Overall

5146

Males

4760

M45-49

4760

10K→15K

6.2 - 9.3 mi

Top 20%
×3story building
+67ft-78ft

Overall

5247

Males

4851

M45-49

4851

15K→20K

9.3 - 12.4 mi

Top 18%
×5story building
+106ft-86ft

Overall

4768

Males

4430

M45-49

4430

20K→Half

12.4 - 13.1 mi

Top 18%
×2story building
+19ft-37ft

Overall

4769

Males

4431

M45-49

4431

Half→25K

13.1 - 15.5 mi

Top 18%
×4story building
+66ft-88ft

Overall

4669

Males

4344

M45-49

4344

25K→30K

15.5 - 18.6 mi

Top 17%
×9story building
+181ft-148ft

Overall

4570

Males

4232

M45-49

4232

30K→20M

18.6 - 20.0 mi

Top 19%
×5story building
+64ft-50ft

Overall

4976

Males

4522

M45-49

4522

20M→21M

20.0 - 21.0 mi

Top 20%
×8story building
+106ft-24ft

Overall

5430

Males

4783

M45-49

4783

21M→35K

21.0 - 21.8 mi

Top 15%
×7story building
+17ft-86ft

Overall

3901

Males

3595

M45-49

3595

35K→23M

21.8 - 23.0 mi

Top 17%
×5story building
+23ft-63ft

Overall

4487

Males

4073

M45-49

4073

23M→24M

23.0 - 24.0 mi

Top 17%
×6story building
+12ft-82ft

Overall

4505

Males

4066

M45-49

4066

24M→40K

24.0 - 24.9 mi

Top 21%
×1story
+6ft-20ft

Overall

5720

Males

4836

M45-49

4836

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

6819

Males

5451

M45-49

5451

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2story building
+22ft-21ft

Overall

9159

Males

6829

M45-49

6829

Passing Analysis

Category:
Passed
2005
Passed By
529
Net Change
+1476
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6442
5K → 10K58629+557#6442#5885
10K → 15K23940+199#5885#5686
15K → 20K24620+226#5686#5460
20K → Half358+27#5460#5433
Half → 25K17624+152#5433#5281
25K → 30K24238+204#5281#5077
30K → 20M8352+31#5077#5046
20M → 21M6271-9#5046#5055
21M → 35K754+71#5055#4984
35K → 23M11033+77#4984#4907
23M → 24M7824+54#4907#4853
24M → 40K3949-10#4853#4863
40K → 25.2M1422-8#4863#4871
25.2M → Finish20115-95#4871#4966
TOTALS2005529+1476

Passing Charts

Category:
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

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing