Boston Marathon logo
BOSTON MARATHON 2023

Martin Calland

Bib: 17797•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 46%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
Top 36%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:16
Rank: #12427
Start → 5K
24:16 | 7:49/mi
10K· 6.21 mi
47:58
Rank: #11996 (+431)
5K → 10K
23:42 | 7:38/mi
15K· 9.32 mi
1:12:14
Rank: #12216 (-220)
10K → 15K
24:16 | 7:49/mi
20K· 12.43 mi
1:36:46
Rank: #12279 (-63)
15K → 20K
24:32 | 7:54/mi
Half· 13.11 mi
1:42:08
Rank: #12326 (-47)
20K → Half
5:22 | 7:52/mi
25K· 15.53 mi
2:01:34
Rank: #12408 (-82)
Half → 25K
19:26 | 8:01/mi
30K· 18.64 mi
2:27:22
Rank: #12510 (-102)
25K → 30K
25:48 | 8:18/mi
20M
2:38:41
Rank: #12496 (+14)
30K → 20M
11:19 | 8:20/mi
21M
2:47:34
Rank: #12479 (+17)
20M → 21M
8:53 | 8:53/mi
35K· 21.75 mi
2:53:39
Rank: #12501 (-22)
21M → 35K
6:05 | 8:08/mi
23M
3:04:14
Rank: #12521 (-20)
35K → 23M
10:35 | 8:27/mi
24M
3:12:18
Rank: #12464 (+57)
23M → 24M
8:04 | 8:04/mi
40K· 24.85 mi
3:19:22
Rank: #12457 (+7)
24M → 40K
7:04 | 8:16/mi
25.2M
3:22:18
Rank: #12400 (+57)
40K → 25.2M
2:56 | 8:30/mi
Finish· 26.22 mi
3:30:11
Rank: #12315 (+85)
25.2M → Finish
7:53 | 7:44/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
Time1:42:08
Pace7:47 /mi
2nd Half
Distance13.11 mi
Time1:48:03
Pace8:15 /mi
📊Positive Split: 5.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:5824:167:4924:16
7:49
-
10K
6.21 mi11:38:4047:587:4323:42
7:38
-0:11
15K
9.32 mi12:02:561:12:147:4524:16
7:49
+0:11
20K
12.43 mi12:27:281:36:467:4724:32
7:54
+0:05
Half
13.11 mi12:32:501:42:087:475:22
7:52
-0:02
25K
15.53 mi12:52:162:01:347:5019:26
8:01
+0:09
30K
18.64 mi13:18:042:27:227:5425:48
8:18
+0:17
20M
20.00 mi13:29:232:38:417:5611:19
8:20
+0:02
21M
21.00 mi13:38:162:47:347:598:53
8:53
+0:33
35K
21.75 mi13:44:212:53:397:596:05
8:08
-0:45
23M
23.00 mi13:54:563:04:148:0110:35
8:27
+0:19
24M
24.00 mi14:03:003:12:188:018:04
8:04
-0:23
40K
24.85 mi14:10:043:19:228:017:04
8:16
+0:12
25.2M
25.20 mi14:13:003:22:188:022:56
8:30
+0:14
Finish
26.22 mi14:20:533:30:118:017:53
7:44
-0:46

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

7:38 /mi

Average Pace

8:01 /mi

Slowest Pace

8:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:07:47

89% of race

Time at Steady Pace

22:24

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:01 /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 mi11:14:5824:167:4924:16
7:49
#12427
10K
6.21 mi11:38:4047:587:4323:42
7:38
#11996
15K
9.32 mi12:02:561:12:147:4524:16
7:49
#12216
20K
12.43 mi12:27:281:36:467:4724:32
7:54
#12279
Half
13.11 mi12:32:501:42:087:475:22
7:52
#12326
25K
15.53 mi12:52:162:01:347:5019:26
8:01
#12408
30K
18.64 mi13:18:042:27:227:5425:48
8:18
#12510
20M
20.00 mi13:29:232:38:417:5611:19
8:20
#12496
21M
21.00 mi13:38:162:47:347:598:53
8:53
#12479
35K
21.75 mi13:44:212:53:397:596:05
8:08
#12501
23M
23.00 mi13:54:563:04:148:0110:35
8:27
#12521
24M
24.00 mi14:03:003:12:188:018:04
8:04
#12464
40K
24.85 mi14:10:043:19:228:017:04
8:16
#12457
25.2M
25.20 mi14:13:003:22:188:022:56
8:30
#12400
Finish
26.22 mi14:20:533:30:118:017:53
7:44
#12315
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi124279291929112806(Top 48%)9438(Top 62%)9438(Top 664%)
10K6.21 mi3.10 mi11996+4319112+1799112+17911573(Top 43%)8919(Top 59%)8919(Top 627%)
15K9.32 mi3.11 mi12216-2209183-719183-7112806(Top 48%)9438(Top 62%)9438(Top 664%)
20K12.43 mi3.11 mi12279-639183918312576(Top 47%)9260(Top 61%)9260(Top 651%)
Half13.11 mi0.68 mi12326-479204-219204-2113242(Top 50%)9572(Top 63%)9572(Top 673%)
25K15.53 mi2.42 mi12408-829220-169220-1612851(Top 48%)9283(Top 61%)9283(Top 653%)
30K18.64 mi3.11 mi12510-1029232-129232-1213049(Top 49%)9246(Top 61%)9246(Top 650%)
20M20.00 mi1.36 mi12496+149212+209212+2012514(Top 47%)8907(Top 59%)8907(Top 626%)
21M21.00 mi1.00 mi12479+179176+369176+3612734(Top 48%)8909(Top 59%)8909(Top 627%)
35K21.75 mi0.75 mi12501-229171+59171+512960(Top 49%)8958(Top 59%)8958(Top 630%)
23M23.00 mi1.25 mi12521-209164+79164+712907(Top 48%)8869(Top 58%)8869(Top 624%)
24M24.00 mi1.00 mi12464+579119+459119+4511669(Top 44%)8237(Top 54%)8237(Top 579%)
40K24.85 mi0.85 mi12457+79093+269093+2611774(Top 44%)8215(Top 54%)8215(Top 578%)
25.2M25.20 mi0.35 mi12400+579057+369057+369548(Top 36%)7074(Top 47%)7074(Top 497%)
Finish26.22 mi1.02 mi12315+858997+608997+6010201(Top 38%)7401(Top 49%)7401(Top 520%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21stories
+97ft-345ft

Overall

12806

Males

9438

M55-59

9438

5K→10K

3.1 - 6.2 mi

Top 43%
×5stories
+79ft-138ft

Overall

11573

Males

8919

M55-59

8919

10K→15K

6.2 - 9.3 mi

Top 48%
×3stories
+67ft-78ft

Overall

12806

Males

9438

M55-59

9438

15K→20K

9.3 - 12.4 mi

Top 47%
×5stories
+106ft-86ft

Overall

12576

Males

9260

M55-59

9260

20K→Half

12.4 - 13.1 mi

Top 50%
×2stories
+19ft-37ft

Overall

13242

Males

9572

M55-59

9572

Half→25K

13.1 - 15.5 mi

Top 48%
×4stories
+66ft-88ft

Overall

12851

Males

9283

M55-59

9283

25K→30K

15.5 - 18.6 mi

Top 49%
×9stories
+181ft-148ft

Overall

13049

Males

9246

M55-59

9246

30K→20M

18.6 - 20.0 mi

Top 47%
×5stories
+64ft-50ft

Overall

12514

Males

8907

M55-59

8907

20M→21M

20.0 - 21.0 mi

Top 48%
×8stories
+106ft-24ft

Overall

12734

Males

8909

M55-59

8909

21M→35K

21.0 - 21.8 mi

Top 49%
×7stories
+17ft-86ft

Overall

12960

Males

8958

M55-59

8958

35K→23M

21.8 - 23.0 mi

Top 48%
×5stories
+23ft-63ft

Overall

12907

Males

8869

M55-59

8869

23M→24M

23.0 - 24.0 mi

Top 44%
×6stories
+12ft-82ft

Overall

11669

Males

8237

M55-59

8237

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

11774

Males

8215

M55-59

8215

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

9548

Males

7074

M55-59

7074

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2stories
+22ft-21ft

Overall

10201

Males

7401

M55-59

7401

Passing Analysis

Category:
Athletes Passed
1805
Passed By
1693
Net Change
+112
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12427
5K → 10K585154+431#12427#11996
10K → 15K124344-220#11996#12216
15K → 20K148211-63#12216#12279
20K → Half1461-47#12279#12326
Half → 25K102184-82#12326#12408
25K → 30K169271-102#12408#12510
30K → 20M10894+14#12510#12496
20M → 21M10285+17#12496#12479
21M → 35K3456-22#12479#12501
35K → 23M83103-20#12501#12521
23M → 24M8831+57#12521#12464
24M → 40K6053+7#12464#12457
40K → 25.2M636+57#12457#12400
25.2M → Finish12540+85#12400#12315
TOTALS18051693+112
📊

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