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BOSTON MARATHON 2023

Thomas Ennis

Bib: 30914•M

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
9:36/mi
29:49
↑ 97↓ 3451.5%
10K· 6.21 mi
8:56/mi
57:35
↑ 79↓ 1380.4%
15K· 9.32 mi
8:53/mi
1:25:10
↑ 67↓ 78
20K· 12.43 mi
8:39/mi
1:52:02
↑ 106↓ 860.1%
Half· 13.11 mi
8:49/mi
1:58:03
↑ 19↓ 370.5%
25K· 15.53 mi
8:45/mi
2:19:16
↑ 66↓ 880.2%
30K· 18.64 mi
8:59/mi
2:47:11
↑ 181↓ 1480.2%
20M
9:08/mi
2:59:36
↑ 64↓ 500.2%
21M
9:09/mi
3:08:45
↑ 106↓ 241.6%
35K· 21.75 mi
8:17/mi
3:14:57
↑ 17↓ 861.7%
23M
8:43/mi
3:25:52
↑ 23↓ 630.6%
24M
8:10/mi
3:34:02
↓ 821.3%
40K· 24.85 mi
8:16/mi
3:41:06
↓ 200.3%
25.2M
8:54/mi
3:44:10
↑ 13↓ 160.2%
Finish· 26.22 mi
7:59/mi
3:52:18
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:58:03
Pace9:00 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:54:15
Pace8:43 /mi
📊Negative Split: 3.2% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:0229:499:3629:49
9:36
-
10K
6.21 mi12:19:4857:359:1627:46
8:56
-0:40
15K
9.32 mi12:47:231:25:109:0827:35
8:53
-0:03
20K
12.43 mi13:14:151:52:029:0126:52
8:39
-0:14
Half
13.11 mi13:20:161:58:039:006:01
8:49
+0:10
25K
15.53 mi13:41:292:19:168:5821:13
8:45
-0:04
30K
18.64 mi14:09:242:47:118:5827:55
8:59
+0:14
20M
20.00 mi14:21:492:59:368:5912:25
9:08
+0:09
21M
21.00 mi14:30:583:08:458:599:09
9:09
+0:01
35K
21.75 mi14:37:103:14:578:586:12
8:17
-0:52
23M
23.00 mi14:48:053:25:528:5710:55
8:43
+0:26
24M
24.00 mi14:56:153:34:028:558:10
8:10
-0:33
40K
24.85 mi15:03:193:41:068:547:04
8:16
+0:06
25.2M
25.20 mi15:06:233:44:108:543:04
8:54
+0:38
Finish
26.22 mi15:14:313:52:188:528:08
7:59
-0:55

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

7:59 /mi

Average Pace

8:52 /mi

Slowest Pace

9:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

29:34

13% of race

Time at Steady Pace

2:31:21

65% of race

Time at Slower Pace

51:23

22% of race

Average Pace: 8:52 /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 mi11:52:0229:499:3629:49
9:36
#22359
10K
6.21 mi12:19:4857:359:1627:46
8:56
#21627
15K
9.32 mi12:47:231:25:109:0827:35
8:53
#21166
20K
12.43 mi13:14:151:52:029:0126:52
8:39
#20426
Half
13.11 mi13:20:161:58:039:006:01
8:49
#20387
25K
15.53 mi13:41:292:19:168:5821:13
8:45
#19962
30K
18.64 mi14:09:242:47:118:5827:55
8:59
#19438
20M
20.00 mi14:21:492:59:368:5912:25
9:08
#19267
21M
21.00 mi14:30:583:08:458:599:09
9:09
#18999
35K
21.75 mi14:37:103:14:578:586:12
8:17
#18831
23M
23.00 mi14:48:053:25:528:5710:55
8:43
#18574
24M
24.00 mi14:56:153:34:028:558:10
8:10
#18326
40K
24.85 mi15:03:193:41:068:547:04
8:16
#18128
25.2M
25.20 mi15:06:233:44:108:543:04
8:54
#18043
Finish
26.22 mi15:14:313:52:188:528:08
7:59
#17831
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi22359132831328319929(Top 75%)12264(Top 81%)12264(Top 545%)
10K6.21 mi3.10 mi21627+73212955+32812955+32820614(Top 77%)12544(Top 83%)12544(Top 557%)
15K9.32 mi3.11 mi21166+46112776+17912776+17919929(Top 75%)12264(Top 81%)12264(Top 545%)
20K12.43 mi3.11 mi20426+74012445+33112445+33117776(Top 67%)11370(Top 75%)11370(Top 505%)
Half13.11 mi0.68 mi20387+3912430+1512430+1519546(Top 73%)12109(Top 80%)12109(Top 538%)
25K15.53 mi2.42 mi19962+42512251+17912251+17917663(Top 66%)11265(Top 74%)11265(Top 500%)
30K18.64 mi3.11 mi19438+52412025+22612025+22617087(Top 64%)10950(Top 72%)10950(Top 486%)
20M20.00 mi1.36 mi19267+17111933+9211933+9217240(Top 65%)10918(Top 72%)10918(Top 485%)
21M21.00 mi1.00 mi18999+26811813+12011813+12014206(Top 53%)9602(Top 63%)9602(Top 426%)
35K21.75 mi0.75 mi18831+16811734+7911734+7914025(Top 53%)9444(Top 62%)9444(Top 419%)
23M23.00 mi1.25 mi18574+25711618+11611618+11614498(Top 54%)9586(Top 63%)9586(Top 426%)
24M24.00 mi1.00 mi18326+24811489+12911489+12912376(Top 46%)8587(Top 57%)8587(Top 381%)
40K24.85 mi0.85 mi18128+19811394+9511394+9511795(Top 44%)8236(Top 54%)8236(Top 366%)
25.2M25.20 mi0.35 mi18043+8511353+4111353+4111896(Top 45%)8239(Top 54%)8239(Top 366%)
Finish26.22 mi1.02 mi17831+21211262+9111262+9111989(Top 45%)8287(Top 55%)8287(Top 368%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21story building
+97ft-345ft

Overall

19929

Males

12264

M45-49

12264

5K→10K

3.1 - 6.2 mi

Top 77%
×5story building
+79ft-138ft

Overall

20614

Males

12544

M45-49

12544

10K→15K

6.2 - 9.3 mi

Top 75%
×3story building
+67ft-78ft

Overall

19929

Males

12264

M45-49

12264

15K→20K

9.3 - 12.4 mi

Top 67%
×5story building
+106ft-86ft

Overall

17776

Males

11370

M45-49

11370

20K→Half

12.4 - 13.1 mi

Top 73%
×2story building
+19ft-37ft

Overall

19546

Males

12109

M45-49

12109

Half→25K

13.1 - 15.5 mi

Top 66%
×4story building
+66ft-88ft

Overall

17663

Males

11265

M45-49

11265

25K→30K

15.5 - 18.6 mi

Top 64%
×9story building
+181ft-148ft

Overall

17087

Males

10950

M45-49

10950

30K→20M

18.6 - 20.0 mi

Top 65%
×5story building
+64ft-50ft

Overall

17240

Males

10918

M45-49

10918

20M→21M

20.0 - 21.0 mi

Top 53%
×8story building
+106ft-24ft

Overall

14206

Males

9602

M45-49

9602

21M→35K

21.0 - 21.8 mi

Top 53%
×7story building
+17ft-86ft

Overall

14025

Males

9444

M45-49

9444

35K→23M

21.8 - 23.0 mi

Top 54%
×5story building
+23ft-63ft

Overall

14498

Males

9586

M45-49

9586

23M→24M

23.0 - 24.0 mi

Top 46%
×6story building
+12ft-82ft

Overall

12376

Males

8587

M45-49

8587

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

11795

Males

8236

M45-49

8236

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

11896

Males

8239

M45-49

8239

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2story building
+22ft-21ft

Overall

11989

Males

8287

M45-49

8287

Passing Analysis

Category:
Athletes Passed
4649
Passed By
121
Net Change
+4528
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22359
5K → 10K78250+732#22359#21627
10K → 15K48423+461#21627#21166
15K → 20K7400+740#21166#20426
20K → Half467+39#20426#20387
Half → 25K4305+425#20387#19962
25K → 30K53511+524#19962#19438
30K → 20M18514+171#19438#19267
20M → 21M2713+268#19267#18999
21M → 35K1680+168#18999#18831
35K → 23M2603+257#18831#18574
23M → 24M2480+248#18574#18326
24M → 40K1980+198#18326#18128
40K → 25.2M872+85#18128#18043
25.2M → Finish2153+212#18043#17831
TOTALS4649121+4528
📊

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