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BOSTON MARATHON 2023

Tony Rajkowski

Bib: 9881•M

MN

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
8:29/mi
26:20
↑ 97↓ 3451.5%
10K· 6.21 mi
8:27/mi
52:34
↑ 79↓ 1380.4%
15K· 9.32 mi
8:44/mi
1:19:43
↑ 67↓ 78
20K· 12.43 mi
8:30/mi
1:46:07
↑ 106↓ 860.1%
Half· 13.11 mi
8:23/mi
1:51:50
↑ 19↓ 370.5%
25K· 15.53 mi
8:24/mi
2:12:13
↑ 66↓ 880.2%
30K· 18.64 mi
8:27/mi
2:38:29
↑ 181↓ 1480.2%
20M
8:25/mi
2:49:55
↑ 64↓ 500.2%
21M
8:39/mi
2:58:34
↑ 106↓ 241.6%
35K· 21.75 mi
7:55/mi
3:04:29
↑ 17↓ 861.7%
23M
8:15/mi
3:14:49
↑ 23↓ 630.6%
24M
7:56/mi
3:22:45
↓ 821.3%
40K· 24.85 mi
7:58/mi
3:29:34
↓ 200.3%
25.2M
8:45/mi
3:32:35
↑ 13↓ 160.2%
Finish· 26.22 mi
7:46/mi
3:40:30
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:51:50
Pace8:32 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:48:40
Pace8:17 /mi
📊Negative Split: 2.8% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:0426:208:2926:20
8:29
-
10K
6.21 mi11:18:1852:348:2826:14
8:27
-0:02
15K
9.32 mi11:45:271:19:438:3327:09
8:44
+0:17
20K
12.43 mi12:11:511:46:078:3226:24
8:30
-0:14
Half
13.11 mi12:17:341:51:508:325:43
8:23
-0:07
25K
15.53 mi12:37:572:12:138:3120:23
8:24
+0:01
30K
18.64 mi13:04:132:38:298:3026:16
8:27
+0:03
20M
20.00 mi13:15:392:49:558:3011:26
8:25
-0:02
21M
21.00 mi13:24:182:58:348:308:39
8:39
+0:14
35K
21.75 mi13:30:133:04:298:295:55
7:55
-0:44
23M
23.00 mi13:40:333:14:498:2810:20
8:15
+0:20
24M
24.00 mi13:48:293:22:458:277:56
7:56
-0:19
40K
24.85 mi13:55:183:29:348:266:49
7:58
+0:02
25.2M
25.20 mi13:58:193:32:358:263:01
8:45
+0:47
Finish
26.22 mi14:06:143:40:308:257:55
7:46
-0:59

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

7:46 /mi

Average Pace

8:25 /mi

Slowest Pace

8:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:01:41

82% of race

Time at Steady Pace

38:49

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:25 /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 mi10:52:0426:208:2926:20
8:29
#17385
10K
6.21 mi11:18:1852:348:2826:14
8:27
#17622
15K
9.32 mi11:45:271:19:438:3327:09
8:44
#18186
20K
12.43 mi12:11:511:46:078:3226:24
8:30
#17816
Half
13.11 mi12:17:341:51:508:325:43
8:23
#17749
25K
15.53 mi12:37:572:12:138:3120:23
8:24
#17387
30K
18.64 mi13:04:132:38:298:3026:16
8:27
#16784
20M
20.00 mi13:15:392:49:558:3011:26
8:25
#16503
21M
21.00 mi13:24:182:58:348:308:39
8:39
#16212
35K
21.75 mi13:30:133:04:298:295:55
7:55
#16031
23M
23.00 mi13:40:333:14:498:2810:20
8:15
#15736
24M
24.00 mi13:48:293:22:458:277:56
7:56
#15533
40K
24.85 mi13:55:183:29:348:266:49
7:58
#15334
25.2M
25.20 mi13:58:193:32:358:263:01
8:45
#15259
Finish
26.22 mi14:06:143:40:308:257:55
7:46
#15063
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi17385111771117719170(Top 72%)11945(Top 79%)11945(Top 530%)
10K6.21 mi3.10 mi17622-23711300-12311300-12317867(Top 67%)11433(Top 75%)11433(Top 508%)
15K9.32 mi3.11 mi18186-56411531-23111531-23119170(Top 72%)11945(Top 79%)11945(Top 530%)
20K12.43 mi3.11 mi17816+37011379+15211379+15216818(Top 63%)10963(Top 72%)10963(Top 487%)
Half13.11 mi0.68 mi17749+6711352+2711352+2716946(Top 64%)11044(Top 73%)11044(Top 490%)
25K15.53 mi2.42 mi17387+36211197+15511197+15515610(Top 59%)10379(Top 68%)10379(Top 461%)
30K18.64 mi3.11 mi16784+60310922+27510922+27514010(Top 53%)9659(Top 64%)9659(Top 429%)
20M20.00 mi1.36 mi16503+28110780+14210780+14213092(Top 49%)9172(Top 60%)9172(Top 407%)
21M21.00 mi1.00 mi16212+29110645+13510645+13511352(Top 43%)8285(Top 55%)8285(Top 368%)
35K21.75 mi0.75 mi16031+18110556+8910556+8911450(Top 43%)8340(Top 55%)8340(Top 370%)
23M23.00 mi1.25 mi15736+29510409+14710409+14711552(Top 43%)8267(Top 54%)8267(Top 367%)
24M24.00 mi1.00 mi15533+20310312+9710312+9710776(Top 40%)7799(Top 51%)7799(Top 346%)
40K24.85 mi0.85 mi15334+19910232+8010232+809874(Top 37%)7290(Top 48%)7290(Top 324%)
25.2M25.20 mi0.35 mi15259+7510196+3610196+3610998(Top 41%)7809(Top 51%)7809(Top 347%)
Finish26.22 mi1.02 mi15063+19610098+9810098+9810444(Top 39%)7528(Top 50%)7528(Top 334%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21story building
+97ft-345ft

Overall

19170

Males

11945

M45-49

11945

5K→10K

3.1 - 6.2 mi

Top 67%
×5story building
+79ft-138ft

Overall

17867

Males

11433

M45-49

11433

10K→15K

6.2 - 9.3 mi

Top 72%
×3story building
+67ft-78ft

Overall

19170

Males

11945

M45-49

11945

15K→20K

9.3 - 12.4 mi

Top 63%
×5story building
+106ft-86ft

Overall

16818

Males

10963

M45-49

10963

20K→Half

12.4 - 13.1 mi

Top 64%
×2story building
+19ft-37ft

Overall

16946

Males

11044

M45-49

11044

Half→25K

13.1 - 15.5 mi

Top 59%
×4story building
+66ft-88ft

Overall

15610

Males

10379

M45-49

10379

25K→30K

15.5 - 18.6 mi

Top 53%
×9story building
+181ft-148ft

Overall

14010

Males

9659

M45-49

9659

30K→20M

18.6 - 20.0 mi

Top 49%
×5story building
+64ft-50ft

Overall

13092

Males

9172

M45-49

9172

20M→21M

20.0 - 21.0 mi

Top 43%
×8story building
+106ft-24ft

Overall

11352

Males

8285

M45-49

8285

21M→35K

21.0 - 21.8 mi

Top 43%
×7story building
+17ft-86ft

Overall

11450

Males

8340

M45-49

8340

35K→23M

21.8 - 23.0 mi

Top 43%
×5story building
+23ft-63ft

Overall

11552

Males

8267

M45-49

8267

23M→24M

23.0 - 24.0 mi

Top 40%
×6story building
+12ft-82ft

Overall

10776

Males

7799

M45-49

7799

24M→40K

24.0 - 24.9 mi

Top 37%
×1story
+6ft-20ft

Overall

9874

Males

7290

M45-49

7290

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

10998

Males

7809

M45-49

7809

25.2M→Finish

25.2 - 26.2 mi

Top 39%
×2story building
+22ft-21ft

Overall

10444

Males

7528

M45-49

7528

Passing Analysis

Category:
Athletes Passed
3447
Passed By
1125
Net Change
+2322
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17385
5K → 10K192429-237#17385#17622
10K → 15K55619-564#17622#18186
15K → 20K40535+370#18186#17816
20K → Half747+67#17816#17749
Half → 25K3686+362#17749#17387
25K → 30K6052+603#17387#16784
30K → 20M2887+281#16784#16503
20M → 21M2910+291#16503#16212
21M → 35K1821+181#16212#16031
35K → 23M2961+295#16031#15736
23M → 24M2074+203#15736#15533
24M → 40K2023+199#15533#15334
40K → 25.2M805+75#15334#15259
25.2M → Finish2026+196#15259#15063
TOTALS34471125+2322
📊

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