Boston Marathon logo
BOSTON MARATHON 2023

Ajaykrishnan Venkatachalam

Bib: 25941•M

CA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
30:31
Rank: #22979
Start → 5K
30:31 | 9:49/mi
10K· 6.21 mi
1:00:24
Rank: #22962 (+17)
5K → 10K
29:53 | 9:37/mi
15K· 9.32 mi
1:31:11
Rank: #23102 (-140)
10K → 15K
30:47 | 9:54/mi
20K· 12.43 mi
2:02:43
Rank: #23130 (-28)
15K → 20K
31:32 | 10:09/mi
Half· 13.11 mi
2:09:27
Rank: #23110 (+20)
20K → Half
6:44 | 9:52/mi
25K· 15.53 mi
2:34:55
Rank: #23121 (-11)
Half → 25K
25:28 | 10:30/mi
30K· 18.64 mi
3:08:36
Rank: #23083 (+38)
25K → 30K
33:41 | 10:50/mi
20M
3:24:21
Rank: #23122 (-39)
30K → 20M
15:45 | 11:35/mi
21M
3:36:04
Rank: #23067 (+55)
20M → 21M
11:43 | 11:43/mi
35K· 21.75 mi
3:44:16
Rank: #23082 (-15)
21M → 35K
8:12 | 10:58/mi
23M
3:58:30
Rank: #23071 (+11)
35K → 23M
14:14 | 11:22/mi
24M
4:10:03
Rank: #23124 (-53)
23M → 24M
11:33 | 11:33/mi
40K· 24.85 mi
4:20:02
Rank: #23126 (-2)
24M → 40K
9:59 | 11:41/mi
25.2M
4:24:21
Rank: #23132 (-6)
40K → 25.2M
4:19 | 12:31/mi
Finish· 26.22 mi
4:35:19
Rank: #23151 (-19)
25.2M → Finish
10:58 | 10:46/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
Time2:09:27
Pace9:52 /mi
2nd Half
Distance13.11 mi
Time2:25:52
Pace11:08 /mi
📊Positive Split: 12.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:1630:319:4930:31
9:49
-
10K
6.21 mi12:17:091:00:249:4329:53
9:37
-0:12
15K
9.32 mi12:47:561:31:119:4730:47
9:54
+0:17
20K
12.43 mi13:19:282:02:439:5231:32
10:09
+0:15
Half
13.11 mi13:26:122:09:279:526:44
9:52
-0:17
25K
15.53 mi13:51:402:34:559:5825:28
10:30
+0:38
30K
18.64 mi14:25:213:08:3610:0733:41
10:50
+0:20
20M
20.00 mi14:41:063:24:2110:1315:45
11:35
+0:45
21M
21.00 mi14:52:493:36:0410:1711:43
11:43
+0:08
35K
21.75 mi15:01:013:44:1610:198:12
10:58
-0:45
23M
23.00 mi15:15:153:58:3010:2214:14
11:22
+0:24
24M
24.00 mi15:26:484:10:0310:2511:33
11:33
+0:11
40K
24.85 mi15:36:474:20:0210:289:59
11:41
+0:08
25.2M
25.20 mi15:41:064:24:2110:294:19
12:31
+0:50
Finish
26.22 mi15:52:044:35:1910:3010:58
10:46
-1:45

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

9:37 /mi

Average Pace

10:30 /mi

Slowest Pace

12:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:09:27

47% of race

Time at Steady Pace

1:18:19

28% of race

Time at Slower Pace

1:07:33

25% of race

Average Pace: 10:30 /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 mi11:47:1630:319:4930:31
9:49
#22979
10K
6.21 mi12:17:091:00:249:4329:53
9:37
#22962
15K
9.32 mi12:47:561:31:119:4730:47
9:54
#23102
20K
12.43 mi13:19:282:02:439:5231:32
10:09
#23130
Half
13.11 mi13:26:122:09:279:526:44
9:52
#23110
25K
15.53 mi13:51:402:34:559:5825:28
10:30
#23121
30K
18.64 mi14:25:213:08:3610:0733:41
10:50
#23083
20M
20.00 mi14:41:063:24:2110:1315:45
11:35
#23122
21M
21.00 mi14:52:493:36:0410:1711:43
11:43
#23067
35K
21.75 mi15:01:013:44:1610:198:12
10:58
#23082
23M
23.00 mi15:15:153:58:3010:2214:14
11:22
#23071
24M
24.00 mi15:26:484:10:0310:2511:33
11:33
#23124
40K
24.85 mi15:36:474:20:0210:289:59
11:41
#23126
25.2M
25.20 mi15:41:064:24:2110:294:19
12:31
#23132
Finish
26.22 mi15:52:044:35:1910:3010:58
10:46
#23151
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi22979135801358023319(Top 88%)13794(Top 91%)13794(Top 616%)
10K6.21 mi3.10 mi22962+1713600-2013600-2022848(Top 86%)13572(Top 89%)13572(Top 606%)
15K9.32 mi3.11 mi23102-14013677-7713677-7723319(Top 88%)13794(Top 91%)13794(Top 616%)
20K12.43 mi3.11 mi23130-2813690-1313690-1323205(Top 87%)13728(Top 90%)13728(Top 613%)
Half13.11 mi0.68 mi23110+2013680+1013680+1023014(Top 86%)13636(Top 90%)13636(Top 608%)
25K15.53 mi2.42 mi23121-1113675+513675+523206(Top 87%)13688(Top 90%)13688(Top 611%)
30K18.64 mi3.11 mi23083+3813631+4413631+4422863(Top 86%)13455(Top 89%)13455(Top 600%)
20M20.00 mi1.36 mi23122-3913639-813639-823650(Top 89%)13759(Top 91%)13759(Top 614%)
21M21.00 mi1.00 mi23067+5513608+3113608+3122259(Top 84%)13094(Top 86%)13094(Top 584%)
35K21.75 mi0.75 mi23082-1513603+513603+523227(Top 87%)13493(Top 89%)13493(Top 602%)
23M23.00 mi1.25 mi23071+1113588+1513588+1523006(Top 86%)13396(Top 88%)13396(Top 598%)
24M24.00 mi1.00 mi23124-5313612-2413612-2423939(Top 90%)13781(Top 91%)13781(Top 615%)
40K24.85 mi0.85 mi23126-213596+1613596+1623471(Top 88%)13528(Top 89%)13528(Top 604%)
25.2M25.20 mi0.35 mi23132-6135961359623298(Top 88%)13452(Top 89%)13452(Top 600%)
Finish26.22 mi1.02 mi23151-1913603-713603-723524(Top 88%)13582(Top 89%)13582(Top 606%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
×21stories
+97ft-345ft

Overall

23319

Males

13794

M40-44

13794

5K→10K

3.1 - 6.2 mi

Top 86%
×5stories
+79ft-138ft

Overall

22848

Males

13572

M40-44

13572

10K→15K

6.2 - 9.3 mi

Top 88%
×3stories
+67ft-78ft

Overall

23319

Males

13794

M40-44

13794

15K→20K

9.3 - 12.4 mi

Top 87%
×5stories
+106ft-86ft

Overall

23205

Males

13728

M40-44

13728

20K→Half

12.4 - 13.1 mi

Top 86%
×2stories
+19ft-37ft

Overall

23014

Males

13636

M40-44

13636

Half→25K

13.1 - 15.5 mi

Top 87%
×4stories
+66ft-88ft

Overall

23206

Males

13688

M40-44

13688

25K→30K

15.5 - 18.6 mi

Top 86%
×9stories
+181ft-148ft

Overall

22863

Males

13455

M40-44

13455

30K→20M

18.6 - 20.0 mi

Top 89%
×5stories
+64ft-50ft

Overall

23650

Males

13759

M40-44

13759

20M→21M

20.0 - 21.0 mi

Top 84%
×8stories
+106ft-24ft

Overall

22259

Males

13094

M40-44

13094

21M→35K

21.0 - 21.8 mi

Top 87%
×7stories
+17ft-86ft

Overall

23227

Males

13493

M40-44

13493

35K→23M

21.8 - 23.0 mi

Top 86%
×5stories
+23ft-63ft

Overall

23006

Males

13396

M40-44

13396

23M→24M

23.0 - 24.0 mi

Top 90%
×6stories
+12ft-82ft

Overall

23939

Males

13781

M40-44

13781

24M→40K

24.0 - 24.9 mi

Top 88%
×1story
+6ft-20ft

Overall

23471

Males

13528

M40-44

13528

40K→25.2M

24.9 - 25.2 mi

Top 88%
×1story
+13ft-16ft

Overall

23298

Males

13452

M40-44

13452

25.2M→Finish

25.2 - 26.2 mi

Top 88%
×2stories
+22ft-21ft

Overall

23524

Males

13582

M40-44

13582

Passing Analysis

Category:
Athletes Passed
1000
Passed By
1172
Net Change
-172
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22979
5K → 10K239222+17#22979#22962
10K → 15K82222-140#22962#23102
15K → 20K119147-28#23102#23130
20K → Half3414+20#23130#23110
Half → 25K93104-11#23110#23121
25K → 30K13294+38#23121#23083
30K → 20M4382-39#23083#23122
20M → 21M7621+55#23122#23067
21M → 35K2136-15#23067#23082
35K → 23M5847+11#23082#23071
23M → 24M1972-53#23071#23124
24M → 40K4446-2#23124#23126
40K → 25.2M1319-6#23126#23132
25.2M → Finish2746-19#23132#23151
TOTALS10001172-172
📊

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