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BOSTON MARATHON 2023

Brian Sider

Bib: 10912•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M45-49)
#0 / 2252
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:17/mi
25:43
↑ 97↓ 3451.5%
10K· 6.21 mi
8:32/mi
52:13
↑ 79↓ 1380.4%
15K· 9.32 mi
8:27/mi
1:18:27
↑ 67↓ 78
20K· 12.43 mi
8:31/mi
1:44:54
↑ 106↓ 860.1%
Half· 13.11 mi
8:02/mi
1:50:23
↑ 19↓ 370.5%
25K· 15.53 mi
8:48/mi
2:11:43
↑ 66↓ 880.2%
30K· 18.64 mi
8:36/mi
2:38:25
↑ 181↓ 1480.2%
20M
9:09/mi
2:50:51
↑ 64↓ 500.2%
21M
9:25/mi
3:00:16
↑ 106↓ 241.6%
35K· 21.75 mi
8:24/mi
3:06:33
↑ 17↓ 861.7%
23M
8:51/mi
3:17:38
↑ 23↓ 630.6%
24M
9:06/mi
3:26:44
↓ 821.3%
40K· 24.85 mi
8:47/mi
3:34:15
↓ 200.3%
25.2M
9:54/mi
3:37:40
↑ 13↓ 160.2%
Finish· 26.22 mi
8:42/mi
3:46:32
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:23
Pace8:25 /mi
2nd Half
Distance13.11 mi
Time1:56:09
Pace8:52 /mi
📊Positive Split: 5.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:0325:438:1725:43
8:17
-
10K
6.21 mi11:18:3352:138:2426:30
8:32
+0:15
15K
9.32 mi11:44:471:18:278:2526:14
8:27
-0:05
20K
12.43 mi12:11:141:44:548:2626:27
8:31
+0:04
Half
13.11 mi12:16:431:50:238:255:29
8:02
-0:29
25K
15.53 mi12:38:032:11:438:2921:20
8:48
+0:46
30K
18.64 mi13:04:452:38:258:3026:42
8:36
-0:12
20M
20.00 mi13:17:112:50:518:3312:26
9:09
+0:33
21M
21.00 mi13:26:363:00:168:359:25
9:25
+0:16
35K
21.75 mi13:32:533:06:338:356:17
8:24
-1:01
23M
23.00 mi13:43:583:17:388:3611:05
8:51
+0:27
24M
24.00 mi13:53:043:26:448:379:06
9:06
+0:15
40K
24.85 mi14:00:353:34:158:377:31
8:47
-0:19
25.2M
25.20 mi14:04:003:37:408:383:25
9:54
+1:07
Finish
26.22 mi14:12:523:46:328:398:52
8:42
-1:12

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

8:02 /mi

Average Pace

8:39 /mi

Slowest Pace

9:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:03:43

28% of race

Time at Steady Pace

2:08:27

57% of race

Time at Slower Pace

34:22

15% of race

Average Pace: 8:38 /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 mi10:52:0325:438:1725:43
8:17
#15989
10K
6.21 mi11:18:3352:138:2426:30
8:32
#17226
15K
9.32 mi11:44:471:18:278:2526:14
8:27
#17305
20K
12.43 mi12:11:141:44:548:2626:27
8:31
#17199
Half
13.11 mi12:16:431:50:238:255:29
8:02
#17078
25K
15.53 mi12:38:032:11:438:2921:20
8:48
#17203
30K
18.64 mi13:04:452:38:258:3026:42
8:36
#16761
20M
20.00 mi13:17:112:50:518:3312:26
9:09
#16788
21M
21.00 mi13:26:363:00:168:359:25
9:25
#16711
35K
21.75 mi13:32:533:06:338:356:17
8:24
#16620
23M
23.00 mi13:43:583:17:388:3611:05
8:51
#16542
24M
24.00 mi13:53:043:26:448:379:06
9:06
#16589
40K
24.85 mi14:00:353:34:158:377:31
8:47
#16511
25.2M
25.20 mi14:04:003:37:408:383:25
9:54
#16527
Finish
26.22 mi14:12:523:46:328:398:52
8:42
#16516
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi15989106961069617409(Top 65%)11226(Top 74%)11226(Top 498%)
10K6.21 mi3.10 mi17226-123711132-43611132-43618417(Top 69%)11668(Top 77%)11668(Top 518%)
15K9.32 mi3.11 mi17305-7911186-5411186-5417409(Top 65%)11226(Top 74%)11226(Top 498%)
20K12.43 mi3.11 mi17199+10611131+5511131+5516929(Top 64%)11017(Top 73%)11017(Top 489%)
Half13.11 mi0.68 mi17078+12111080+5111080+5114656(Top 55%)10176(Top 67%)10176(Top 452%)
25K15.53 mi2.42 mi17203-12511119-3911119-3917922(Top 67%)11378(Top 75%)11378(Top 505%)
30K18.64 mi3.11 mi16761+44210909+21010909+21014882(Top 56%)10005(Top 66%)10005(Top 444%)
20M20.00 mi1.36 mi16788-2710910-110910-117288(Top 65%)10933(Top 72%)10933(Top 485%)
21M21.00 mi1.00 mi16711+7710867+4310867+4315550(Top 58%)10159(Top 67%)10159(Top 451%)
35K21.75 mi0.75 mi16620+9110816+5110816+5114697(Top 55%)9748(Top 64%)9748(Top 433%)
23M23.00 mi1.25 mi16542+7810770+4610770+4615270(Top 57%)9927(Top 65%)9927(Top 441%)
24M24.00 mi1.00 mi16589-47107701077017658(Top 66%)10916(Top 72%)10916(Top 485%)
40K24.85 mi0.85 mi16511+7810714+5610714+5615033(Top 56%)9706(Top 64%)9706(Top 431%)
25.2M25.20 mi0.35 mi16527-1610715-110715-116968(Top 64%)10545(Top 69%)10545(Top 468%)
Finish26.22 mi1.02 mi16516+1110700+1510700+1516475(Top 62%)10372(Top 68%)10372(Top 461%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×21story building
+97ft-345ft

Overall

17409

Males

11226

M45-49

11226

5K→10K

3.1 - 6.2 mi

Top 69%
×5story building
+79ft-138ft

Overall

18417

Males

11668

M45-49

11668

10K→15K

6.2 - 9.3 mi

Top 65%
×3story building
+67ft-78ft

Overall

17409

Males

11226

M45-49

11226

15K→20K

9.3 - 12.4 mi

Top 64%
×5story building
+106ft-86ft

Overall

16929

Males

11017

M45-49

11017

20K→Half

12.4 - 13.1 mi

Top 55%
×2story building
+19ft-37ft

Overall

14656

Males

10176

M45-49

10176

Half→25K

13.1 - 15.5 mi

Top 67%
×4story building
+66ft-88ft

Overall

17922

Males

11378

M45-49

11378

25K→30K

15.5 - 18.6 mi

Top 56%
×9story building
+181ft-148ft

Overall

14882

Males

10005

M45-49

10005

30K→20M

18.6 - 20.0 mi

Top 65%
×5story building
+64ft-50ft

Overall

17288

Males

10933

M45-49

10933

20M→21M

20.0 - 21.0 mi

Top 58%
×8story building
+106ft-24ft

Overall

15550

Males

10159

M45-49

10159

21M→35K

21.0 - 21.8 mi

Top 55%
×7story building
+17ft-86ft

Overall

14697

Males

9748

M45-49

9748

35K→23M

21.8 - 23.0 mi

Top 57%
×5story building
+23ft-63ft

Overall

15270

Males

9927

M45-49

9927

23M→24M

23.0 - 24.0 mi

Top 66%
×6story building
+12ft-82ft

Overall

17658

Males

10916

M45-49

10916

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

15033

Males

9706

M45-49

9706

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1story
+13ft-16ft

Overall

16968

Males

10545

M45-49

10545

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2story building
+22ft-21ft

Overall

16475

Males

10372

M45-49

10372

Passing Analysis

Category:
Athletes Passed
1711
Passed By
2238
Net Change
-527
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15989
5K → 10K311268-1237#15989#17226
10K → 15K158237-79#17226#17305
15K → 20K220114+106#17305#17199
20K → Half1210+121#17199#17078
Half → 25K83208-125#17078#17203
25K → 30K4486+442#17203#16761
30K → 20M74101-27#16761#16788
20M → 21M11538+77#16788#16711
21M → 35K10413+91#16711#16620
35K → 23M11436+78#16620#16542
23M → 24M53100-47#16542#16589
24M → 40K10224+78#16589#16511
40K → 25.2M2743-16#16511#16527
25.2M → Finish6150+11#16527#16516
TOTALS17112238-527
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing