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BOSTON MARATHON 2026

Robin Ucelli

Bib: 7118•M

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0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M45-49)
#0 / 2413
Race Day Weather
51°/41°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
24:40
3.11 mi
Rank: #16475
Start → 5K
24:40 | 7:57/mi
10K
49:47
6.21 mi
Rank: #17164 (-689)
5K → 10K
25:07 | 8:06/mi
15K
1:15:17
9.32 mi
Rank: #17600 (-436)
10K → 15K
25:30 | 8:13/mi
20K
1:40:33
12.43 mi
Rank: #17443 (+157)
15K → 20K
25:16 | 8:08/mi
HALF
1:46:47
13.11 mi
Rank: #17820 (-377)
20K → HALF
6:14 | 9:09/mi
25K
2:06:57
15.53 mi
Rank: #17755 (+65)
HALF → 25K
20:10 | 8:19/mi
30K
2:32:48
18.64 mi
Rank: #17364 (+391)
25K → 30K
25:51 | 8:20/mi
20M
2:44:25
20.00 mi
Rank: #17274 (+90)
30K → 20M
11:37 | 8:34/mi
21M
2:53:15
21.00 mi
Rank: #17132 (+142)
20M → 21M
8:50 | 8:50/mi
35K
2:59:35
21.75 mi
Rank: #17117 (+15)
21M → 35K
6:20 | 8:28/mi
23M
3:09:58
23.00 mi
Rank: #16950 (+167)
35K → 23M
10:23 | 8:18/mi
24M
3:17:43
24.00 mi
Rank: #16727 (+223)
23M → 24M
7:45 | 7:45/mi
40K
3:24:23
24.85 mi
Rank: #16486 (+241)
24M → 40K
6:40 | 7:48/mi
25.2M
3:27:28
25.20 mi
Rank: #16444 (+42)
40K → 25.2M
3:05 | 8:57/mi
FINISH
3:35:37
26.22 mi
Rank: #16385 (+59)
25.2M → FINISH
8:09 | 8:00/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:46:47
Pace8:09 /mi
2nd Half
Distance13.11 mi
Time1:48:50
Pace8:19 /mi
📊Positive Split: 1.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:30:3624:407:5724:40
7:57
-
10K
6.21 mi10:55:4349:478:0125:07
8:06
+0:09
15K
9.32 mi11:21:131:15:178:0525:30
8:13
+0:07
20K
12.43 mi11:46:291:40:338:0625:16
8:08
-0:05
HALF
13.11 mi11:52:431:46:478:096:14
9:09
+1:01
25K
15.53 mi12:12:532:06:578:1120:10
8:19
-0:50
30K
18.64 mi12:38:442:32:488:1225:51
8:20
+0:01
20M
20.00 mi12:50:212:44:258:1411:37
8:34
+0:14
21M
21.00 mi12:59:112:53:158:168:50
8:50
+0:16
35K
21.75 mi13:05:312:59:358:166:20
8:28
-0:22
23M
23.00 mi13:15:543:09:588:1610:23
8:18
-0:10
24M
24.00 mi13:23:393:17:438:157:45
7:45
-0:33
40K
24.85 mi13:30:193:24:238:146:40
7:48
+0:03
25.2M
25.20 mi13:33:243:27:288:143:05
8:57
+1:09
FINISH
26.22 mi13:41:333:35:378:148:09
8:00
-0:57

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

7:45 /mi

Average Pace

8:14 /mi

Slowest Pace

9:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

3:05:51

86% of race

Time at Steady Pace

23:32

11% of race

Time at Slower Pace

6:14

3% of race

Average Pace: 8:13 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:30:3624:407:5724:40
7:57
#16475
10K
6.21 mi10:55:4349:478:0125:07
8:06
#17164
15K
9.32 mi11:21:131:15:178:0525:30
8:13
#17600
20K
12.43 mi11:46:291:40:338:0625:16
8:08
#17443
HALF
13.11 mi11:52:431:46:478:096:14
9:09
#17820
25K
15.53 mi12:12:532:06:578:1120:10
8:19
#17755
30K
18.64 mi12:38:442:32:488:1225:51
8:20
#17364
20M
20.00 mi12:50:212:44:258:1411:37
8:34
#17274
21M
21.00 mi12:59:112:53:158:168:50
8:50
#17132
35K
21.75 mi13:05:312:59:358:166:20
8:28
#17117
23M
23.00 mi13:15:543:09:588:1610:23
8:18
#16950
24M
24.00 mi13:23:393:17:438:157:45
7:45
#16727
40K
24.85 mi13:30:193:24:238:146:40
7:48
#16486
25.2M
25.20 mi13:33:243:27:288:143:05
8:57
#16444
FINISH
26.22 mi13:41:333:35:378:148:09
8:00
#16385
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi16475107981079818367(Top 63%)11602(Top 71%)11602(Top 481%)
10K6.21 mi3.10 mi17164-68911069-27111069-27117844(Top 61%)11363(Top 70%)11363(Top 471%)
15K9.32 mi3.11 mi17600-43611258-18911258-18918367(Top 63%)11602(Top 71%)11602(Top 481%)
20K12.43 mi3.11 mi17443+15711187+7111187+7117064(Top 59%)11021(Top 67%)11021(Top 457%)
HALF13.11 mi0.68 mi17820-37711354-16711354-16723246(Top 80%)13858(Top 85%)13858(Top 574%)
25K15.53 mi2.42 mi17755+6511321+3311321+3317509(Top 60%)11152(Top 68%)11152(Top 462%)
30K18.64 mi3.11 mi17364+39111121+20011121+20015754(Top 54%)10305(Top 63%)10305(Top 427%)
20M20.00 mi1.36 mi17274+9011078+4311078+4316493(Top 57%)10521(Top 64%)10521(Top 436%)
21M21.00 mi1.00 mi17132+14210988+9010988+9015170(Top 52%)9894(Top 61%)9894(Top 410%)
35K21.75 mi0.75 mi17117+1510962+2610962+2617364(Top 60%)10751(Top 66%)10751(Top 446%)
23M23.00 mi1.25 mi16950+16710871+9110871+9114430(Top 50%)9432(Top 58%)9432(Top 391%)
24M24.00 mi1.00 mi16727+22310762+10910762+10911911(Top 41%)8218(Top 50%)8218(Top 341%)
40K24.85 mi0.85 mi16486+24110630+13210630+13211008(Top 38%)7719(Top 47%)7719(Top 320%)
25.2M25.20 mi0.35 mi16444+4210599+3110599+3114334(Top 49%)9219(Top 56%)9219(Top 382%)
FINISH26.22 mi1.02 mi16385+5910548+5110548+5115147(Top 52%)9595(Top 59%)9595(Top 398%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21
+97ft-345ft

Overall

18367

Males

11602

M45-49

11602

5K→10K

3.1 - 6.2 mi

Top 61%
×5
+79ft-138ft

Overall

17844

Males

11363

M45-49

11363

10K→15K

6.2 - 9.3 mi

Top 63%
×3
+67ft-78ft

Overall

18367

Males

11602

M45-49

11602

15K→20K

9.3 - 12.4 mi

Top 59%
×5
+106ft-86ft

Overall

17064

Males

11021

M45-49

11021

20K→HALF

12.4 - 13.1 mi

Top 80%
×2
+19ft-37ft

Overall

23246

Males

13858

M45-49

13858

HALF→25K

13.1 - 15.5 mi

Top 60%
×4
+66ft-88ft

Overall

17509

Males

11152

M45-49

11152

25K→30K

15.5 - 18.6 mi

Top 54%
×9
+181ft-148ft

Overall

15754

Males

10305

M45-49

10305

30K→20M

18.6 - 20.0 mi

Top 57%
×5
+64ft-50ft

Overall

16493

Males

10521

M45-49

10521

20M→21M

20.0 - 21.0 mi

Top 52%
×8
+106ft-24ft

Overall

15170

Males

9894

M45-49

9894

21M→35K

21.0 - 21.8 mi

Top 60%
×7
+17ft-86ft

Overall

17364

Males

10751

M45-49

10751

35K→23M

21.8 - 23.0 mi

Top 50%
×5
+23ft-63ft

Overall

14430

Males

9432

M45-49

9432

23M→24M

23.0 - 24.0 mi

Top 41%
×6
+12ft-82ft

Overall

11911

Males

8218

M45-49

8218

24M→40K

24.0 - 24.9 mi

Top 38%
×1
+6ft-20ft

Overall

11008

Males

7719

M45-49

7719

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1
+13ft-16ft

Overall

14334

Males

9219

M45-49

9219

25.2M→FINISH

25.2 - 26.2 mi

Top 52%
×2
+22ft-21ft

Overall

15147

Males

9595

M45-49

9595

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2134*
Passed By
1003
Net Change
+90
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16475
5K → 10K75200-689#16475#17164
10K → 15K61200-436#17164#17600
15K → 20K247*90+157#17600#17443
20K → HALF3200-377#17443#17820
HALF → 25K15590+65#17820#17755
25K → 30K419*28+391#17755#17364
30K → 20M13646+90#17364#17274
20M → 21M17129+142#17274#17132
21M → 35K6348+15#17132#17117
35K → 23M19023+167#17117#16950
23M → 24M227*4+223#16950#16727
24M → 40K241*0+241#16727#16486
40K → 25.2M5311+42#16486#16444
25.2M → FINISH9334+59#16444#16385
TOTALS2134*1003+90

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing