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BOSTON MARATHON 2023

Sajeewa Chandrasoma

Bib: 17511•M

WA

Masters
Boston Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Age Group (M55-59)
#0 / 1422
Top 48%
Race Day Weather
49°/39°F
light intensity drizzle

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
25:52
Rank: #16317
Start → 5K
25:52 | 8:20/mi
10K· 6.21 mi
51:20
Rank: #16240 (+77)
5K → 10K
25:28 | 8:12/mi
15K· 9.32 mi
1:16:41
Rank: #16012 (+228)
10K → 15K
25:21 | 8:10/mi
20K· 12.43 mi
1:42:05
Rank: #15667 (+345)
15K → 20K
25:24 | 8:11/mi
Half· 13.11 mi
1:47:29
Rank: #15575 (+92)
20K → Half
5:24 | 7:55/mi
25K· 15.53 mi
2:06:55
Rank: #15134 (+441)
Half → 25K
19:26 | 8:01/mi
30K· 18.64 mi
2:33:31
Rank: #15035 (+99)
25K → 30K
26:36 | 8:34/mi
20M
2:45:20
Rank: #15008 (+27)
30K → 20M
11:49 | 8:42/mi
21M
2:54:18
Rank: #14888 (+120)
20M → 21M
8:58 | 8:58/mi
35K· 21.75 mi
3:00:27
Rank: #14826 (+62)
21M → 35K
6:09 | 8:13/mi
23M
3:10:42
Rank: #14601 (+225)
35K → 23M
10:15 | 8:11/mi
24M
3:18:33
Rank: #14396 (+205)
23M → 24M
7:51 | 7:51/mi
40K· 24.85 mi
3:25:13
Rank: #14179 (+217)
24M → 40K
6:40 | 7:48/mi
25.2M
3:28:06
Rank: #14076 (+103)
40K → 25.2M
2:53 | 8:22/mi
Finish· 26.22 mi
3:35:38
Rank: #13812 (+264)
25.2M → Finish
7:32 | 7:24/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half⚖️ Balanced
via Half
Distance13.11 mi
Time1:47:29
Pace8:12 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:48:09
Pace8:15 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:4025:528:2025:52
8:20
-
10K
6.21 mi11:42:0851:208:1625:28
8:12
-0:08
15K
9.32 mi12:07:291:16:418:1425:21
8:10
-0:02
20K
12.43 mi12:32:531:42:058:1325:24
8:11
+0:01
Half
13.11 mi12:38:171:47:298:125:24
7:55
-0:16
25K
15.53 mi12:57:432:06:558:1019:26
8:01
+0:06
30K
18.64 mi13:24:192:33:318:1426:36
8:34
+0:33
20M
20.00 mi13:36:082:45:208:1611:49
8:42
+0:08
21M
21.00 mi13:45:062:54:188:188:58
8:58
+0:16
35K
21.75 mi13:51:153:00:278:186:09
8:13
-0:45
23M
23.00 mi14:01:303:10:428:1710:15
8:11
-0:02
24M
24.00 mi14:09:213:18:338:167:51
7:51
-0:20
40K
24.85 mi14:16:013:25:138:156:40
7:48
-0:03
25.2M
25.20 mi14:18:543:28:068:152:53
8:22
+0:34
Finish
26.22 mi14:26:263:35:388:147:32
7:24
-0:58

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

7:24 /mi

Average Pace

8:14 /mi

Slowest Pace

8:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

27:27

13% of race

Time at Steady Pace

2:20:48

65% of race

Time at Slower Pace

47:23

22% of race

Average Pace: 8:13 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:16:4025:528:2025:52
8:20
#16317
10K
6.21 mi11:42:0851:208:1625:28
8:12
#16240
15K
9.32 mi12:07:291:16:418:1425:21
8:10
#16012
20K
12.43 mi12:32:531:42:058:1325:24
8:11
#15667
Half
13.11 mi12:38:171:47:298:125:24
7:55
#15575
25K
15.53 mi12:57:432:06:558:1019:26
8:01
#15134
30K
18.64 mi13:24:192:33:318:1426:36
8:34
#15035
20M
20.00 mi13:36:082:45:208:1611:49
8:42
#15008
21M
21.00 mi13:45:062:54:188:188:58
8:58
#14888
35K
21.75 mi13:51:153:00:278:186:09
8:13
#14826
23M
23.00 mi14:01:303:10:428:1710:15
8:11
#14601
24M
24.00 mi14:09:213:18:338:167:51
7:51
#14396
40K
24.85 mi14:16:013:25:138:156:40
7:48
#14179
25.2M
25.20 mi14:18:543:28:068:152:53
8:22
#14076
Finish
26.22 mi14:26:263:35:388:147:32
7:24
#13812
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi16317108161081615557(Top 58%)10519(Top 69%)10519(Top 740%)
10K6.21 mi3.10 mi16240+7710800+1610800+1616212(Top 61%)10785(Top 71%)10785(Top 758%)
15K9.32 mi3.11 mi16012+22810703+9710703+9715557(Top 58%)10519(Top 69%)10519(Top 740%)
20K12.43 mi3.11 mi15667+34510551+15210551+15214776(Top 56%)10186(Top 67%)10186(Top 716%)
Half13.11 mi0.68 mi15575+9210510+4110510+4113645(Top 51%)9755(Top 64%)9755(Top 686%)
25K15.53 mi2.42 mi15134+44110324+18610324+18612861(Top 48%)9293(Top 61%)9293(Top 654%)
30K18.64 mi3.11 mi15035+9910244+8010244+8014679(Top 55%)9923(Top 65%)9923(Top 698%)
20M20.00 mi1.36 mi15008+2710210+3410210+3414805(Top 56%)9894(Top 65%)9894(Top 696%)
21M21.00 mi1.00 mi14888+12010147+6310147+6313198(Top 50%)9132(Top 60%)9132(Top 642%)
35K21.75 mi0.75 mi14826+6210105+4210105+4213557(Top 51%)9217(Top 61%)9217(Top 648%)
23M23.00 mi1.25 mi14601+2259997+1089997+10811099(Top 42%)8030(Top 53%)8030(Top 565%)
24M24.00 mi1.00 mi14396+2059888+1099888+10910158(Top 38%)7492(Top 49%)7492(Top 527%)
40K24.85 mi0.85 mi14179+2179778+1109778+1108668(Top 33%)6652(Top 44%)6652(Top 468%)
25.2M25.20 mi0.35 mi14076+1039735+439735+438678(Top 33%)6579(Top 43%)6579(Top 463%)
Finish26.22 mi1.02 mi13812+2649616+1199616+1197744(Top 29%)6030(Top 40%)6030(Top 424%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21stories
+97ft-345ft

Overall

15557

Males

10519

M55-59

10519

5K→10K

3.1 - 6.2 mi

Top 61%
×5stories
+79ft-138ft

Overall

16212

Males

10785

M55-59

10785

10K→15K

6.2 - 9.3 mi

Top 58%
×3stories
+67ft-78ft

Overall

15557

Males

10519

M55-59

10519

15K→20K

9.3 - 12.4 mi

Top 56%
×5stories
+106ft-86ft

Overall

14776

Males

10186

M55-59

10186

20K→Half

12.4 - 13.1 mi

Top 51%
×2stories
+19ft-37ft

Overall

13645

Males

9755

M55-59

9755

Half→25K

13.1 - 15.5 mi

Top 48%
×4stories
+66ft-88ft

Overall

12861

Males

9293

M55-59

9293

25K→30K

15.5 - 18.6 mi

Top 55%
×9stories
+181ft-148ft

Overall

14679

Males

9923

M55-59

9923

30K→20M

18.6 - 20.0 mi

Top 56%
×5stories
+64ft-50ft

Overall

14805

Males

9894

M55-59

9894

20M→21M

20.0 - 21.0 mi

Top 50%
×8stories
+106ft-24ft

Overall

13198

Males

9132

M55-59

9132

21M→35K

21.0 - 21.8 mi

Top 51%
×7stories
+17ft-86ft

Overall

13557

Males

9217

M55-59

9217

35K→23M

21.8 - 23.0 mi

Top 42%
×5stories
+23ft-63ft

Overall

11099

Males

8030

M55-59

8030

23M→24M

23.0 - 24.0 mi

Top 38%
×6stories
+12ft-82ft

Overall

10158

Males

7492

M55-59

7492

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

8668

Males

6652

M55-59

6652

40K→25.2M

24.9 - 25.2 mi

Top 33%
×1story
+13ft-16ft

Overall

8678

Males

6579

M55-59

6579

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2stories
+22ft-21ft

Overall

7744

Males

6030

M55-59

6030

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
3163
Passed By
658
Net Change
+2505
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16317
5K → 10K322245+77#16317#16240
10K → 15K32799+228#16240#16012
15K → 20K39045+345#16012#15667
20K → Half942+92#15667#15575
Half → 25K4465+441#15575#15134
25K → 30K226127+99#15134#15035
30K → 20M9568+27#15035#15008
20M → 21M15434+120#15008#14888
21M → 35K7917+62#14888#14826
35K → 23M2338+225#14826#14601
23M → 24M2105+205#14601#14396
24M → 40K2170+217#14396#14179
40K → 25.2M1063+103#14179#14076
25.2M → Finish2640+264#14076#13812
TOTALS3163658+2505
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing