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BOSTON MARATHON 2023

Ivan Mcelderry

Bib: 5933•M

MO

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 21%
Gender (Male)
#0 / 15176
Top 34%
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:56
Rank: #6614
Start → 5K
21:56 | 7:04/mi
10K· 6.21 mi
42:15
Rank: #4959 (+1655)
5K → 10K
20:19 | 6:32/mi
15K· 9.32 mi
1:02:31
Rank: #4094 (+865)
10K → 15K
20:16 | 6:31/mi
20K· 12.43 mi
1:22:57
Rank: #3645 (+449)
15K → 20K
20:26 | 6:35/mi
Half· 13.11 mi
1:27:24
Rank: #3597 (+48)
20K → Half
4:27 | 6:31/mi
25K· 15.53 mi
1:43:34
Rank: #3494 (+103)
Half → 25K
16:10 | 6:40/mi
30K· 18.64 mi
2:06:26
Rank: #4141 (-647)
25K → 30K
22:52 | 7:22/mi
20M
2:17:01
Rank: #4591 (-450)
30K → 20M
10:35 | 7:47/mi
21M
2:25:21
Rank: #4893 (-302)
20M → 21M
8:20 | 8:20/mi
35K· 21.75 mi
2:31:15
Rank: #5095 (-202)
21M → 35K
5:54 | 7:53/mi
23M
2:41:32
Rank: #5359 (-264)
35K → 23M
10:17 | 8:13/mi
24M
2:49:32
Rank: #5536 (-177)
23M → 24M
8:00 | 8:00/mi
40K· 24.85 mi
2:56:36
Rank: #5666 (-130)
24M → 40K
7:04 | 8:16/mi
25.2M
2:59:33
Rank: #5705 (-39)
40K → 25.2M
2:57 | 8:33/mi
Finish· 26.22 mi
3:06:58
Rank: #5692 (+13)
25.2M → Finish
7:25 | 7:17/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:24
Pace6:40 /mi
2nd Half
Distance13.11 mi
Time1:39:34
Pace7:36 /mi
📊Positive Split: 13.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:5121:567:0421:56
7:04
-
10K
6.21 mi10:45:1042:156:4820:19
6:32
-0:32
15K
9.32 mi11:05:261:02:316:4220:16
6:31
-0:01
20K
12.43 mi11:25:521:22:576:4020:26
6:35
+0:04
Half
13.11 mi11:30:191:27:246:404:27
6:31
-0:04
25K
15.53 mi11:46:291:43:346:4016:10
6:40
+0:09
30K
18.64 mi12:09:212:06:266:4722:52
7:22
+0:42
20M
20.00 mi12:19:562:17:016:5110:35
7:47
+0:25
21M
21.00 mi12:28:162:25:216:558:20
8:20
+0:33
35K
21.75 mi12:34:102:31:156:575:54
7:53
-0:27
23M
23.00 mi12:44:272:41:327:0110:17
8:13
+0:20
24M
24.00 mi12:52:272:49:327:048:00
8:00
-0:13
40K
24.85 mi12:59:312:56:367:067:04
8:16
+0:16
25.2M
25.20 mi13:02:282:59:337:082:57
8:33
+0:17
Finish
26.22 mi13:09:533:06:587:087:25
7:17
-1:16

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

6:31 /mi

Average Pace

7:08 /mi

Slowest Pace

8:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:21:38

44% of race

Time at Steady Pace

52:13

28% of race

Time at Slower Pace

53:07

28% of race

Average Pace: 7:08 /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 mi10:24:5121:567:0421:56
7:04
#6614
10K
6.21 mi10:45:1042:156:4820:19
6:32
#4959
15K
9.32 mi11:05:261:02:316:4220:16
6:31
#4094
20K
12.43 mi11:25:521:22:576:4020:26
6:35
#3645
Half
13.11 mi11:30:191:27:246:404:27
6:31
#3597
25K
15.53 mi11:46:291:43:346:4016:10
6:40
#3494
30K
18.64 mi12:09:212:06:266:4722:52
7:22
#4141
20M
20.00 mi12:19:562:17:016:5110:35
7:47
#4591
21M
21.00 mi12:28:162:25:216:558:20
8:20
#4893
35K
21.75 mi12:34:102:31:156:575:54
7:53
#5095
23M
23.00 mi12:44:272:41:327:0110:17
8:13
#5359
24M
24.00 mi12:52:272:49:327:048:00
8:00
#5536
40K
24.85 mi12:59:312:56:367:067:04
8:16
#5666
25.2M
25.20 mi13:02:282:59:337:082:57
8:33
#5705
Finish
26.22 mi13:09:533:06:587:087:25
7:17
#5692
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi6614597359732786(Top 10%)2662(Top 18%)2662(Top 50%)
10K6.21 mi3.10 mi4959+16554601+13724601+13723055(Top 11%)2916(Top 19%)2916(Top 55%)
15K9.32 mi3.11 mi4094+8653848+7533848+7532786(Top 10%)2662(Top 18%)2662(Top 50%)
20K12.43 mi3.11 mi3645+4493450+3983450+3982714(Top 10%)2596(Top 17%)2596(Top 49%)
Half13.11 mi0.68 mi3597+483405+453405+452989(Top 11%)2864(Top 19%)2864(Top 54%)
25K15.53 mi2.42 mi3494+1033314+913314+913146(Top 12%)3001(Top 20%)3001(Top 57%)
30K18.64 mi3.11 mi4141-6473893-5793893-5796355(Top 24%)5622(Top 37%)5622(Top 106%)
20M20.00 mi1.36 mi4591-4504281-3884281-3888730(Top 33%)7028(Top 46%)7028(Top 133%)
21M21.00 mi1.00 mi4893-3024543-2624543-2629381(Top 35%)7268(Top 48%)7268(Top 138%)
35K21.75 mi0.75 mi5095-2024701-1584701-15811220(Top 42%)8202(Top 54%)8202(Top 155%)
23M23.00 mi1.25 mi5359-2644917-2164917-21611225(Top 42%)8074(Top 53%)8074(Top 153%)
24M24.00 mi1.00 mi5536-1775051-1345051-13411183(Top 42%)7967(Top 52%)7967(Top 151%)
40K24.85 mi0.85 mi5666-1305143-925143-9211739(Top 44%)8180(Top 54%)8180(Top 155%)
25.2M25.20 mi0.35 mi5705-395164-215164-219750(Top 37%)7136(Top 47%)7136(Top 135%)
Finish26.22 mi1.02 mi5692+135144+205144+206932(Top 26%)5515(Top 36%)5515(Top 104%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21stories
+97ft-345ft

Overall

2786

Males

2662

M18-39

2662

5K→10K

3.1 - 6.2 mi

Top 11%
×5stories
+79ft-138ft

Overall

3055

Males

2916

M18-39

2916

10K→15K

6.2 - 9.3 mi

Top 10%
×3stories
+67ft-78ft

Overall

2786

Males

2662

M18-39

2662

15K→20K

9.3 - 12.4 mi

Top 10%
×5stories
+106ft-86ft

Overall

2714

Males

2596

M18-39

2596

20K→Half

12.4 - 13.1 mi

Top 11%
×2stories
+19ft-37ft

Overall

2989

Males

2864

M18-39

2864

Half→25K

13.1 - 15.5 mi

Top 12%
×4stories
+66ft-88ft

Overall

3146

Males

3001

M18-39

3001

25K→30K

15.5 - 18.6 mi

Top 24%
×9stories
+181ft-148ft

Overall

6355

Males

5622

M18-39

5622

30K→20M

18.6 - 20.0 mi

Top 33%
×5stories
+64ft-50ft

Overall

8730

Males

7028

M18-39

7028

20M→21M

20.0 - 21.0 mi

Top 35%
×8stories
+106ft-24ft

Overall

9381

Males

7268

M18-39

7268

21M→35K

21.0 - 21.8 mi

Top 42%
×7stories
+17ft-86ft

Overall

11220

Males

8202

M18-39

8202

35K→23M

21.8 - 23.0 mi

Top 42%
×5stories
+23ft-63ft

Overall

11225

Males

8074

M18-39

8074

23M→24M

23.0 - 24.0 mi

Top 42%
×6stories
+12ft-82ft

Overall

11183

Males

7967

M18-39

7967

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

11739

Males

8180

M18-39

8180

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

9750

Males

7136

M18-39

7136

25.2M→Finish

25.2 - 26.2 mi

Top 26%
×2stories
+22ft-21ft

Overall

6932

Males

5515

M18-39

5515

Passing Analysis

Category:
Athletes Passed
3325
Passed By
2403
Net Change
+922
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6614
5K → 10K16594+1655#6614#4959
10K → 15K8650+865#4959#4094
15K → 20K4512+449#4094#3645
20K → Half524+48#3645#3597
Half → 25K13027+103#3597#3494
25K → 30K15662-647#3494#4141
30K → 20M10460-450#4141#4591
20M → 21M9311-302#4591#4893
21M → 35K10212-202#4893#5095
35K → 23M14278-264#5095#5359
23M → 24M19196-177#5359#5536
24M → 40K15145-130#5536#5666
40K → 25.2M746-39#5666#5705
25.2M → Finish6956+13#5705#5692
TOTALS33252403+922
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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