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BOSTON MARATHON 2023

Tim Biliouris

Bib: 3465•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 11%
Gender (Male)
#0 / 15176
Top 18%
Division (M18-39)
#0 / 5285
Top 38%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:48
Rank: #3612
Start → 5K
20:48 | 6:42/mi
10K· 6.21 mi
40:58
Rank: #3104 (+508)
5K → 10K
20:10 | 6:29/mi
15K· 9.32 mi
1:01:39
Rank: #3298 (-194)
10K → 15K
20:41 | 6:39/mi
20K· 12.43 mi
1:22:27
Rank: #3335 (-37)
15K → 20K
20:48 | 6:42/mi
Half· 13.11 mi
1:26:58
Rank: #3341 (-6)
20K → Half
4:31 | 6:37/mi
25K· 15.53 mi
1:43:09
Rank: #3277 (+64)
Half → 25K
16:11 | 6:40/mi
30K· 18.64 mi
2:04:21
Rank: #3204 (+73)
25K → 30K
21:12 | 6:49/mi
20M
2:13:34
Rank: #3139 (+65)
30K → 20M
9:13 | 6:47/mi
21M
2:20:36
Rank: #3056 (+83)
20M → 21M
7:02 | 7:02/mi
35K· 21.75 mi
2:25:32
Rank: #3036 (+20)
21M → 35K
4:56 | 6:36/mi
23M
2:34:01
Rank: #2966 (+70)
35K → 23M
8:29 | 6:47/mi
24M
2:40:29
Rank: #2887 (+79)
23M → 24M
6:28 | 6:28/mi
40K· 24.85 mi
2:46:15
Rank: #2842 (+45)
24M → 40K
5:46 | 6:45/mi
25.2M
2:48:41
Rank: #2804 (+38)
40K → 25.2M
2:26 | 7:03/mi
Finish· 26.22 mi
2:55:24
Rank: #2798 (+6)
25.2M → Finish
6:43 | 6:35/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:58
Pace6:38 /mi
2nd Half
Distance13.11 mi
Time1:28:26
Pace6:45 /mi
📊Positive Split: 1.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:1620:486:4220:48
6:42
-
10K
6.21 mi10:42:2640:586:3620:10
6:29
-0:13
15K
9.32 mi11:03:071:01:396:3720:41
6:39
+0:10
20K
12.43 mi11:23:551:22:276:3820:48
6:42
+0:03
Half
13.11 mi11:28:261:26:586:384:31
6:37
-0:05
25K
15.53 mi11:44:371:43:096:3816:11
6:40
+0:03
30K
18.64 mi12:05:492:04:216:4021:12
6:49
+0:09
20M
20.00 mi12:15:022:13:346:419:13
6:47
-0:02
21M
21.00 mi12:22:042:20:366:427:02
7:02
+0:15
35K
21.75 mi12:27:002:25:326:424:56
6:36
-0:26
23M
23.00 mi12:35:292:34:016:428:29
6:47
+0:11
24M
24.00 mi12:41:572:40:296:416:28
6:28
-0:19
40K
24.85 mi12:47:432:46:156:415:46
6:45
+0:17
25.2M
25.20 mi12:50:092:48:416:422:26
7:03
+0:18
Finish
26.22 mi12:56:522:55:246:426:43
6:35
-0:28

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

6:28 /mi

Average Pace

6:42 /mi

Slowest Pace

7:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:24:44

83% of race

Time at Steady Pace

30:40

17% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:41 /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 mi10:22:1620:486:4220:48
6:42
#3612
10K
6.21 mi10:42:2640:586:3620:10
6:29
#3104
15K
9.32 mi11:03:071:01:396:3720:41
6:39
#3298
20K
12.43 mi11:23:551:22:276:3820:48
6:42
#3335
Half
13.11 mi11:28:261:26:586:384:31
6:37
#3341
25K
15.53 mi11:44:371:43:096:3816:11
6:40
#3277
30K
18.64 mi12:05:492:04:216:4021:12
6:49
#3204
20M
20.00 mi12:15:022:13:346:419:13
6:47
#3139
21M
21.00 mi12:22:042:20:366:427:02
7:02
#3056
35K
21.75 mi12:27:002:25:326:424:56
6:36
#3036
23M
23.00 mi12:35:292:34:016:428:29
6:47
#2966
24M
24.00 mi12:41:572:40:296:416:28
6:28
#2887
40K
24.85 mi12:47:432:46:156:415:46
6:45
#2842
25.2M
25.20 mi12:50:092:48:416:422:26
7:03
#2804
Finish
26.22 mi12:56:522:55:246:426:43
6:35
#2798
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3612340234023724(Top 14%)3508(Top 23%)3508(Top 66%)
10K6.21 mi3.10 mi3104+5082952+4502952+4502728(Top 10%)2609(Top 17%)2609(Top 49%)
15K9.32 mi3.11 mi3298-1943132-1803132-1803724(Top 14%)3508(Top 23%)3508(Top 66%)
20K12.43 mi3.11 mi3335-373170-383170-383526(Top 13%)3335(Top 22%)3335(Top 63%)
Half13.11 mi0.68 mi3341-63175-53175-53525(Top 13%)3333(Top 22%)3333(Top 63%)
25K15.53 mi2.42 mi3277+643120+553120+553164(Top 12%)3016(Top 20%)3016(Top 57%)
30K18.64 mi3.11 mi3204+733049+713049+713130(Top 12%)2950(Top 19%)2950(Top 56%)
20M20.00 mi1.36 mi3139+652984+652984+652700(Top 10%)2554(Top 17%)2554(Top 48%)
21M21.00 mi1.00 mi3056+832902+822902+822300(Top 9%)2173(Top 14%)2173(Top 41%)
35K21.75 mi0.75 mi3036+202885+172885+172947(Top 11%)2758(Top 18%)2758(Top 52%)
23M23.00 mi1.25 mi2966+702822+632822+632510(Top 9%)2356(Top 16%)2356(Top 45%)
24M24.00 mi1.00 mi2887+792743+792743+791973(Top 7%)1854(Top 12%)1854(Top 35%)
40K24.85 mi0.85 mi2842+452702+412702+412543(Top 10%)2357(Top 16%)2357(Top 45%)
25.2M25.20 mi0.35 mi2804+382664+382664+381936(Top 7%)1819(Top 12%)1819(Top 34%)
Finish26.22 mi1.02 mi2798+62657+72657+72932(Top 11%)2657(Top 18%)2657(Top 50%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21stories
+97ft-345ft

Overall

3724

Males

3508

M18-39

3508

5K→10K

3.1 - 6.2 mi

Top 10%
×5stories
+79ft-138ft

Overall

2728

Males

2609

M18-39

2609

10K→15K

6.2 - 9.3 mi

Top 14%
×3stories
+67ft-78ft

Overall

3724

Males

3508

M18-39

3508

15K→20K

9.3 - 12.4 mi

Top 13%
×5stories
+106ft-86ft

Overall

3526

Males

3335

M18-39

3335

20K→Half

12.4 - 13.1 mi

Top 13%
×2stories
+19ft-37ft

Overall

3525

Males

3333

M18-39

3333

Half→25K

13.1 - 15.5 mi

Top 12%
×4stories
+66ft-88ft

Overall

3164

Males

3016

M18-39

3016

25K→30K

15.5 - 18.6 mi

Top 12%
×9stories
+181ft-148ft

Overall

3130

Males

2950

M18-39

2950

30K→20M

18.6 - 20.0 mi

Top 10%
×5stories
+64ft-50ft

Overall

2700

Males

2554

M18-39

2554

20M→21M

20.0 - 21.0 mi

Top 9%
×8stories
+106ft-24ft

Overall

2300

Males

2173

M18-39

2173

21M→35K

21.0 - 21.8 mi

Top 11%
×7stories
+17ft-86ft

Overall

2947

Males

2758

M18-39

2758

35K→23M

21.8 - 23.0 mi

Top 9%
×5stories
+23ft-63ft

Overall

2510

Males

2356

M18-39

2356

23M→24M

23.0 - 24.0 mi

Top 7%
×6stories
+12ft-82ft

Overall

1973

Males

1854

M18-39

1854

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2543

Males

2357

M18-39

2357

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1story
+13ft-16ft

Overall

1936

Males

1819

M18-39

1819

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2stories
+22ft-21ft

Overall

2932

Males

2657

M18-39

2657

Passing Analysis

Category:
Athletes Passed
1420
Passed By
606
Net Change
+814
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3612
5K → 10K53123+508#3612#3104
10K → 15K34228-194#3104#3298
15K → 20K71108-37#3298#3335
20K → Half1117-6#3335#3341
Half → 25K10339+64#3341#3277
25K → 30K12956+73#3277#3204
30K → 20M8621+65#3204#3139
20M → 21M9815+83#3139#3056
21M → 35K3717+20#3056#3036
35K → 23M9323+70#3036#2966
23M → 24M856+79#2966#2887
24M → 40K6217+45#2887#2842
40K → 25.2M402+38#2842#2804
25.2M → Finish4034+6#2804#2798
TOTALS1420606+814
📊

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