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BOSTON MARATHON 2026

Tammy Clark

Bib: 31067•F

IL

Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Age Group (F40-44)
#0 / 1737
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· 3.11 mi
36:00
Rank: #28580
Start → 5K
36:00 | 11:36/mi
10K· 6.21 mi
1:12:00
Rank: #28457 (+123)
5K → 10K
36:00 | 11:36/mi
15K· 9.32 mi
1:48:07
Rank: #28334 (+123)
10K → 15K
36:07 | 11:38/mi
20K· 12.43 mi
2:26:22
Rank: #28325 (+9)
15K → 20K
38:15 | 12:19/mi
HALF· 13.11 mi
2:33:49
Rank: #28293 (+32)
20K → HALF
7:27 | 10:56/mi
25K· 15.53 mi
3:05:58
Rank: #28312 (-19)
HALF → 25K
32:09 | 13:16/mi
30K· 18.64 mi
3:49:00
Rank: #28326 (-14)
25K → 30K
43:02 | 13:52/mi
20M
4:07:19
Rank: #28308 (+18)
30K → 20M
18:19 | 13:30/mi
21M
4:22:57
Rank: #28327 (-19)
20M → 21M
15:38 | 15:38/mi
35K· 21.75 mi
4:33:19
Rank: #28335 (-8)
21M → 35K
10:22 | 13:52/mi
23M
4:52:43
Rank: #28409 (-74)
35K → 23M
19:24 | 15:31/mi
24M
5:07:00
Rank: #28423 (-14)
23M → 24M
14:17 | 14:17/mi
40K· 24.85 mi
5:17:18
Rank: #28370 (+53)
24M → 40K
10:18 | 12:03/mi
25.2M
5:22:34
Rank: #28375 (-5)
40K → 25.2M
5:16 | 15:17/mi
FINISH· 26.22 mi
5:34:10
Rank: #28326 (+49)
25.2M → FINISH
11:36 | 11:23/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:33:49
Pace11:45 /mi
2nd Half
Distance13.11 mi
Time3:00:21
Pace13:46 /mi
📊Positive Split: 17.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi12:02:3836:0011:3636:00
11:36
-
10K
6.21 mi12:38:381:12:0011:3636:00
11:36
0:00
15K
9.32 mi13:14:451:48:0711:3636:07
11:38
+0:02
20K
12.43 mi13:53:002:26:2211:4738:15
12:19
+0:41
HALF
13.11 mi14:00:272:33:4911:457:27
10:56
-1:23
25K
15.53 mi14:32:363:05:5811:5932:09
13:16
+2:20
30K
18.64 mi15:15:383:49:0012:1843:02
13:52
+0:36
20M
20.00 mi15:33:574:07:1912:2218:19
13:30
-0:22
21M
21.00 mi15:49:354:22:5712:3215:38
15:38
+2:08
35K
21.75 mi15:59:574:33:1912:3510:22
13:52
-1:46
23M
23.00 mi16:19:214:52:4312:4419:24
15:31
+1:39
24M
24.00 mi16:33:385:07:0012:4814:17
14:17
-1:14
40K
24.85 mi16:43:565:17:1812:4610:18
12:03
-2:14
25.2M
25.20 mi16:49:125:22:3412:495:16
15:17
+3:14
FINISH
26.22 mi17:00:485:34:1012:4611:36
11:23
-3:54

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

10:56 /mi

Average Pace

12:45 /mi

Slowest Pace

15:38 /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

2:55:43

53% of race

Time at Steady Pace

1:43:52

31% of race

Time at Slower Pace

54:35

16% of race

Average Pace: 12:45 /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 mi12:02:3836:0011:3636:00
11:36
#28580
10K
6.21 mi12:38:381:12:0011:3636:00
11:36
#28457
15K
9.32 mi13:14:451:48:0711:3636:07
11:38
#28334
20K
12.43 mi13:53:002:26:2211:4738:15
12:19
#28325
HALF
13.11 mi14:00:272:33:4911:457:27
10:56
#28293
25K
15.53 mi14:32:363:05:5811:5932:09
13:16
#28312
30K
18.64 mi15:15:383:49:0012:1843:02
13:52
#28326
20M
20.00 mi15:33:574:07:1912:2218:19
13:30
#28308
21M
21.00 mi15:49:354:22:5712:3215:38
15:38
#28327
35K
21.75 mi15:59:574:33:1912:3510:22
13:52
#28335
23M
23.00 mi16:19:214:52:4312:4419:24
15:31
#28409
24M
24.00 mi16:33:385:07:0012:4814:17
14:17
#28423
40K
24.85 mi16:43:565:17:1812:4610:18
12:03
#28370
25.2M
25.20 mi16:49:125:22:3412:495:16
15:17
#28375
FINISH
26.22 mi17:00:485:34:1012:4611:36
11:23
#28326
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi28580122741227428088(Top 97%)11975(Top 95%)11975(Top 689%)
10K6.21 mi3.10 mi28457+12312186+8812186+8828308(Top 98%)12098(Top 96%)12098(Top 696%)
15K9.32 mi3.11 mi28334+12312109+7712109+7728088(Top 97%)11975(Top 95%)11975(Top 689%)
20K12.43 mi3.11 mi28325+912110-112110-128261(Top 97%)12085(Top 96%)12085(Top 696%)
HALF13.11 mi0.68 mi28293+3212090+2012090+2027302(Top 94%)11542(Top 92%)11542(Top 664%)
25K15.53 mi2.42 mi28312-1912104-1412104-1428371(Top 98%)12180(Top 97%)12180(Top 701%)
30K18.64 mi3.11 mi28326-1412123-1912123-1928274(Top 97%)12173(Top 97%)12173(Top 701%)
20M20.00 mi1.36 mi28308+1812113+1012113+1027782(Top 96%)11922(Top 95%)11922(Top 686%)
21M21.00 mi1.00 mi28327-1912129-1612129-1628419(Top 98%)12292(Top 98%)12292(Top 708%)
35K21.75 mi0.75 mi28335-812139-1012139-1028281(Top 97%)12242(Top 97%)12242(Top 705%)
23M23.00 mi1.25 mi28409-7412193-5412193-5428775(Top 99%)12480(Top 99%)12480(Top 718%)
24M24.00 mi1.00 mi28423-1412209-1612209-1628481(Top 98%)12347(Top 98%)12347(Top 711%)
40K24.85 mi0.85 mi28370+5312177+3212177+3225981(Top 90%)11137(Top 89%)11137(Top 641%)
25.2M25.20 mi0.35 mi28375-512184-712184-728079(Top 97%)12165(Top 97%)12165(Top 700%)
FINISH26.22 mi1.02 mi28326+4912155+2912155+2926743(Top 92%)11518(Top 92%)11518(Top 663%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 97%
×21stories
+97ft-345ft

Overall

28088

Females

11975

F40-44

11975

5K→10K

3.1 - 6.2 mi

Top 98%
×5stories
+79ft-138ft

Overall

28308

Females

12098

F40-44

12098

10K→15K

6.2 - 9.3 mi

Top 97%
×3stories
+67ft-78ft

Overall

28088

Females

11975

F40-44

11975

15K→20K

9.3 - 12.4 mi

Top 97%
×5stories
+106ft-86ft

Overall

28261

Females

12085

F40-44

12085

20K→HALF

12.4 - 13.1 mi

Top 94%
×2stories
+19ft-37ft

Overall

27302

Females

11542

F40-44

11542

HALF→25K

13.1 - 15.5 mi

Top 98%
×4stories
+66ft-88ft

Overall

28371

Females

12180

F40-44

12180

25K→30K

15.5 - 18.6 mi

Top 97%
×9stories
+181ft-148ft

Overall

28274

Females

12173

F40-44

12173

30K→20M

18.6 - 20.0 mi

Top 96%
×5stories
+64ft-50ft

Overall

27782

Females

11922

F40-44

11922

20M→21M

20.0 - 21.0 mi

Top 98%
×8stories
+106ft-24ft

Overall

28419

Females

12292

F40-44

12292

21M→35K

21.0 - 21.8 mi

Top 97%
×7stories
+17ft-86ft

Overall

28281

Females

12242

F40-44

12242

35K→23M

21.8 - 23.0 mi

Top 99%
×5stories
+23ft-63ft

Overall

28775

Females

12480

F40-44

12480

23M→24M

23.0 - 24.0 mi

Top 98%
×6stories
+12ft-82ft

Overall

28481

Females

12347

F40-44

12347

24M→40K

24.0 - 24.9 mi

Top 90%
×1story
+6ft-20ft

Overall

25981

Females

11137

F40-44

11137

40K→25.2M

24.9 - 25.2 mi

Top 97%
×1story
+13ft-16ft

Overall

28079

Females

12165

F40-44

12165

25.2M→FINISH

25.2 - 26.2 mi

Top 92%
×2stories
+22ft-21ft

Overall

26743

Females

11518

F40-44

11518

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
664
Passed By
410
Net Change
+254
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#28580
5K → 10K15835+123#28580#28457
10K → 15K14017+123#28457#28334
15K → 20K6253+9#28334#28325
20K → HALF320+32#28325#28293
HALF → 25K3352-19#28293#28312
25K → 30K5670-14#28312#28326
30K → 20M2911+18#28326#28308
20M → 21M1433-19#28308#28327
21M → 35K1321-8#28327#28335
35K → 23M680-74#28335#28409
23M → 24M1327-14#28409#28423
24M → 40K530+53#28423#28370
40K → 25.2M510-5#28370#28375
25.2M → FINISH501+49#28375#28326
TOTALS664410+254
📊

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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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing