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BOSTON MARATHON 2023

Jim Tiernan

Bib: 18597•M

CT

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
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
8:03/mi
25:00
↑ 97↓ 3451.5%
10K· 6.21 mi
7:43/mi
48:59
↑ 79↓ 1380.4%
15K· 9.32 mi
7:54/mi
1:13:32
↑ 67↓ 78
20K· 12.43 mi
8:29/mi
1:39:52
↑ 106↓ 860.1%
Half· 13.11 mi
8:33/mi
1:45:42
↑ 19↓ 370.5%
25K· 15.53 mi
8:54/mi
2:07:16
↑ 66↓ 880.2%
30K· 18.64 mi
9:14/mi
2:35:57
↑ 181↓ 1480.2%
20M
9:43/mi
2:49:09
↑ 64↓ 500.2%
21M
10:17/mi
2:59:26
↑ 106↓ 241.6%
35K· 21.75 mi
10:01/mi
3:06:56
↑ 17↓ 861.7%
23M
10:19/mi
3:19:51
↑ 23↓ 630.6%
24M
10:03/mi
3:29:54
↓ 821.3%
40K· 24.85 mi
9:58/mi
3:38:25
↓ 200.3%
25.2M
9:20/mi
3:41:38
↑ 13↓ 160.2%
Finish· 26.22 mi
8:42/mi
3:50:30
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:42
Pace8:04 /mi
2nd Half
Distance13.11 mi
Time2:04:48
Pace9:31 /mi
📊Positive Split: 18.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:5825:008:0325:00
8:03
-
10K
6.21 mi11:39:5748:597:5323:59
7:43
-0:20
15K
9.32 mi12:04:301:13:327:5324:33
7:54
+0:11
20K
12.43 mi12:30:501:39:528:0226:20
8:29
+0:35
Half
13.11 mi12:36:401:45:428:045:50
8:33
+0:04
25K
15.53 mi12:58:142:07:168:1221:34
8:54
+0:21
30K
18.64 mi13:26:552:35:578:2228:41
9:14
+0:20
20M
20.00 mi13:40:072:49:098:2713:12
9:43
+0:29
21M
21.00 mi13:50:242:59:268:3310:17
10:17
+0:34
35K
21.75 mi13:57:543:06:568:367:30
10:01
-0:16
23M
23.00 mi14:10:493:19:518:4112:55
10:19
+0:18
24M
24.00 mi14:20:523:29:548:4510:03
10:03
-0:16
40K
24.85 mi14:29:233:38:258:478:31
9:58
-0:05
25.2M
25.20 mi14:32:363:41:388:483:13
9:20
-0:38
Finish
26.22 mi14:41:283:50:308:488:52
8:42
-0:38

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

7:43 /mi

Average Pace

8:48 /mi

Slowest Pace

10:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:54:34

50% of race

Time at Steady Pace

53:28

23% of race

Time at Slower Pace

1:02:28

27% of race

Average Pace: 8:47 /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 mi11:15:5825:008:0325:00
8:03
#14336
10K
6.21 mi11:39:5748:597:5323:59
7:43
#13443
15K
9.32 mi12:04:301:13:327:5324:33
7:54
#13488
20K
12.43 mi12:30:501:39:528:0226:20
8:29
#14365
Half
13.11 mi12:36:401:45:428:045:50
8:33
#14604
25K
15.53 mi12:58:142:07:168:1221:34
8:54
#15299
30K
18.64 mi13:26:552:35:578:2228:41
9:14
#15903
20M
20.00 mi13:40:072:49:098:2713:12
9:43
#16270
21M
21.00 mi13:50:242:59:268:3310:17
10:17
#16452
35K
21.75 mi13:57:543:06:568:367:30
10:01
#16729
23M
23.00 mi14:10:493:19:518:4112:55
10:19
#17101
24M
24.00 mi14:20:523:29:548:4510:03
10:03
#17376
40K
24.85 mi14:29:233:38:258:478:31
9:58
#17538
25.2M
25.20 mi14:32:363:41:388:483:13
9:20
#17479
Finish
26.22 mi14:41:283:50:308:488:52
8:42
#17444
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi14336100901009013549(Top 51%)9733(Top 64%)9733(Top 684%)
10K6.21 mi3.10 mi13443+8939726+3649726+36412428(Top 47%)9308(Top 61%)9308(Top 655%)
15K9.32 mi3.11 mi13488-459731-59731-513549(Top 51%)9733(Top 64%)9733(Top 684%)
20K12.43 mi3.11 mi14365-87710054-32310054-32316697(Top 63%)10924(Top 72%)10924(Top 768%)
Half13.11 mi0.68 mi14604-23910154-10010154-10017950(Top 67%)11472(Top 76%)11472(Top 807%)
25K15.53 mi2.42 mi15299-69510385-23110385-23118420(Top 69%)11597(Top 76%)11597(Top 816%)
30K18.64 mi3.11 mi15903-60410566-18110566-18118299(Top 69%)11465(Top 76%)11465(Top 806%)
20M20.00 mi1.36 mi16270-36710688-12210688-12219584(Top 74%)11936(Top 79%)11936(Top 839%)
21M21.00 mi1.00 mi16452-18210751-6310751-6318962(Top 71%)11621(Top 77%)11621(Top 817%)
35K21.75 mi0.75 mi16729-27710871-12010871-12021311(Top 80%)12624(Top 83%)12624(Top 888%)
23M23.00 mi1.25 mi17101-37211002-13111002-13120851(Top 78%)12390(Top 82%)12390(Top 871%)
24M24.00 mi1.00 mi17376-27511101-9911101-9920909(Top 79%)12392(Top 82%)12392(Top 871%)
40K24.85 mi0.85 mi17538-16211152-5111152-5119851(Top 75%)11852(Top 78%)11852(Top 833%)
25.2M25.20 mi0.35 mi17479+5911119+3311119+3314298(Top 54%)9391(Top 62%)9391(Top 660%)
Finish26.22 mi1.02 mi17444+3511096+2311096+2316480(Top 62%)10377(Top 68%)10377(Top 730%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21story building
+97ft-345ft

Overall

13549

Males

9733

M55-59

9733

5K→10K

3.1 - 6.2 mi

Top 47%
×5story building
+79ft-138ft

Overall

12428

Males

9308

M55-59

9308

10K→15K

6.2 - 9.3 mi

Top 51%
×3story building
+67ft-78ft

Overall

13549

Males

9733

M55-59

9733

15K→20K

9.3 - 12.4 mi

Top 63%
×5story building
+106ft-86ft

Overall

16697

Males

10924

M55-59

10924

20K→Half

12.4 - 13.1 mi

Top 67%
×2story building
+19ft-37ft

Overall

17950

Males

11472

M55-59

11472

Half→25K

13.1 - 15.5 mi

Top 69%
×4story building
+66ft-88ft

Overall

18420

Males

11597

M55-59

11597

25K→30K

15.5 - 18.6 mi

Top 69%
×9story building
+181ft-148ft

Overall

18299

Males

11465

M55-59

11465

30K→20M

18.6 - 20.0 mi

Top 74%
×5story building
+64ft-50ft

Overall

19584

Males

11936

M55-59

11936

20M→21M

20.0 - 21.0 mi

Top 71%
×8story building
+106ft-24ft

Overall

18962

Males

11621

M55-59

11621

21M→35K

21.0 - 21.8 mi

Top 80%
×7story building
+17ft-86ft

Overall

21311

Males

12624

M55-59

12624

35K→23M

21.8 - 23.0 mi

Top 78%
×5story building
+23ft-63ft

Overall

20851

Males

12390

M55-59

12390

23M→24M

23.0 - 24.0 mi

Top 79%
×6story building
+12ft-82ft

Overall

20909

Males

12392

M55-59

12392

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

19851

Males

11852

M55-59

11852

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

14298

Males

9391

M55-59

9391

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2story building
+22ft-21ft

Overall

16480

Males

10377

M55-59

10377

Passing Analysis

Category:
Athletes Passed
1532
Passed By
4640
Net Change
-3108
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14336
5K → 10K95966+893#14336#13443
10K → 15K188233-45#13443#13488
15K → 20K39916-877#13488#14365
20K → Half1240-239#14365#14604
Half → 25K24719-695#14604#15299
25K → 30K53657-604#15299#15903
30K → 20M21388-367#15903#16270
20M → 21M39221-182#16270#16452
21M → 35K11288-277#16452#16729
35K → 23M20392-372#16729#17101
23M → 24M14289-275#17101#17376
24M → 40K19181-162#17376#17538
40K → 25.2M689+59#17538#17479
25.2M → Finish7641+35#17479#17444
TOTALS15324640-3108
📊

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