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BOSTON MARATHON 2026

Suzan Tuinier

Bib: 21577•F

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Top 46%
Age Group (F45-49)
#0 / 1786
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
24:53
3.11 mi
Rank: #17032
Start → 5K
24:53 | 8:01/mi
10K
50:08
6.21 mi
Rank: #17577 (-545)
5K → 10K
25:15 | 8:08/mi
15K
1:16:02
9.32 mi
Rank: #18128 (-551)
10K → 15K
25:54 | 8:21/mi
20K
1:42:19
12.43 mi
Rank: #18360 (-232)
15K → 20K
26:17 | 8:28/mi
HALF
1:48:03
13.11 mi
Rank: #18431 (-71)
20K → HALF
5:44 | 8:25/mi
25K
2:08:40
15.53 mi
Rank: #18432 (-1)
HALF → 25K
20:37 | 8:31/mi
30K
2:36:09
18.64 mi
Rank: #18488 (-56)
25K → 30K
27:29 | 8:51/mi
20M
2:48:18
20.00 mi
Rank: #18483 (+5)
30K → 20M
12:09 | 8:57/mi
21M
2:57:52
21.00 mi
Rank: #18493 (-10)
20M → 21M
9:34 | 9:34/mi
35K
3:04:29
21.75 mi
Rank: #18517 (-24)
21M → 35K
6:37 | 8:51/mi
23M
3:15:50
23.00 mi
Rank: #18517
35K → 23M
11:21 | 9:05/mi
24M
3:24:53
24.00 mi
Rank: #18582 (-65)
23M → 24M
9:03 | 9:03/mi
40K
3:32:40
24.85 mi
Rank: #18602 (-20)
24M → 40K
7:47 | 9:07/mi
25.2M
3:36:00
25.20 mi
Rank: #18592 (+10)
40K → 25.2M
3:20 | 9:40/mi
FINISH
3:44:59
26.22 mi
Rank: #18627 (-35)
25.2M → FINISH
8:59 | 8:49/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:48:03
Pace8:15 /mi
2nd Half
Distance13.11 mi
Time1:56:56
Pace8:56 /mi
📊Positive Split: 8.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:1024:538:0124:53
8:01
-
10K
6.21 mi11:51:2550:088:0525:15
8:08
+0:07
15K
9.32 mi12:17:191:16:028:1025:54
8:21
+0:13
20K
12.43 mi12:43:361:42:198:1426:17
8:28
+0:07
HALF
13.11 mi12:49:201:48:038:155:44
8:25
-0:03
25K
15.53 mi13:09:572:08:408:1720:37
8:31
+0:06
30K
18.64 mi13:37:262:36:098:2327:29
8:51
+0:20
20M
20.00 mi13:49:352:48:188:2512:09
8:57
+0:06
21M
21.00 mi13:59:092:57:528:299:34
9:34
+0:37
35K
21.75 mi14:05:463:04:298:296:37
8:51
-0:43
23M
23.00 mi14:17:073:15:508:3111:21
9:05
+0:14
24M
24.00 mi14:26:103:24:538:339:03
9:03
-0:02
40K
24.85 mi14:33:573:32:408:347:47
9:07
+0:04
25.2M
25.20 mi14:37:173:36:008:353:20
9:40
+0:33
FINISH
26.22 mi14:46:163:44:598:368:59
8:49
-0:51

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

8:01 /mi

Average Pace

8:35 /mi

Slowest Pace

9:40 /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

2:08:40

57% of race

Time at Steady Pace

1:04:17

29% of race

Time at Slower Pace

32:02

14% of race

Average Pace: 8:35 /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 mi11:26:1024:538:0124:53
8:01
#17032
10K
6.21 mi11:51:2550:088:0525:15
8:08
#17577
15K
9.32 mi12:17:191:16:028:1025:54
8:21
#18128
20K
12.43 mi12:43:361:42:198:1426:17
8:28
#18360
HALF
13.11 mi12:49:201:48:038:155:44
8:25
#18431
25K
15.53 mi13:09:572:08:408:1720:37
8:31
#18432
30K
18.64 mi13:37:262:36:098:2327:29
8:51
#18488
20M
20.00 mi13:49:352:48:188:2512:09
8:57
#18483
21M
21.00 mi13:59:092:57:528:299:34
9:34
#18493
35K
21.75 mi14:05:463:04:298:296:37
8:51
#18517
23M
23.00 mi14:17:073:15:508:3111:21
9:05
#18517
24M
24.00 mi14:26:103:24:538:339:03
9:03
#18582
40K
24.85 mi14:33:573:32:408:347:47
9:07
#18602
25.2M
25.20 mi14:37:173:36:008:353:20
9:40
#18592
FINISH
26.22 mi14:46:163:44:598:368:59
8:49
#18627
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi170325946594619208(Top 66%)7155(Top 57%)7155(Top 401%)
10K6.21 mi3.10 mi17577-5456246-3006246-30018165(Top 63%)6569(Top 52%)6569(Top 368%)
15K9.32 mi3.11 mi18128-5516559-3136559-31319208(Top 66%)7155(Top 57%)7155(Top 401%)
20K12.43 mi3.11 mi18360-2326685-1266685-12619073(Top 66%)7111(Top 57%)7111(Top 398%)
HALF13.11 mi0.68 mi18431-716725-406725-4019750(Top 68%)7440(Top 59%)7440(Top 417%)
25K15.53 mi2.42 mi18432-16748-236748-2318602(Top 64%)6908(Top 55%)6908(Top 387%)
30K18.64 mi3.11 mi18488-566819-716819-7118821(Top 65%)7115(Top 57%)7115(Top 398%)
20M20.00 mi1.36 mi18483+56833-146833-1418690(Top 64%)7126(Top 57%)7126(Top 399%)
21M21.00 mi1.00 mi18493-106851-186851-1818812(Top 65%)7224(Top 57%)7224(Top 404%)
35K21.75 mi0.75 mi18517-246873-226873-2219372(Top 67%)7633(Top 61%)7633(Top 427%)
23M23.00 mi1.25 mi185176896-236896-2318848(Top 65%)7397(Top 59%)7397(Top 414%)
24M24.00 mi1.00 mi18582-656951-556951-5519684(Top 68%)7890(Top 63%)7890(Top 442%)
40K24.85 mi0.85 mi18602-206979-286979-2818895(Top 65%)7517(Top 60%)7517(Top 421%)
25.2M25.20 mi0.35 mi18592+106980-16980-118132(Top 62%)7110(Top 57%)7110(Top 398%)
FINISH26.22 mi1.02 mi18627-357020-407020-4019727(Top 68%)7945(Top 63%)7945(Top 445%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21
+97ft-345ft

Overall

19208

Females

7155

F45-49

7155

5K→10K

3.1 - 6.2 mi

Top 63%
×5
+79ft-138ft

Overall

18165

Females

6569

F45-49

6569

10K→15K

6.2 - 9.3 mi

Top 66%
×3
+67ft-78ft

Overall

19208

Females

7155

F45-49

7155

15K→20K

9.3 - 12.4 mi

Top 66%
×5
+106ft-86ft

Overall

19073

Females

7111

F45-49

7111

20K→HALF

12.4 - 13.1 mi

Top 68%
×2
+19ft-37ft

Overall

19750

Females

7440

F45-49

7440

HALF→25K

13.1 - 15.5 mi

Top 64%
×4
+66ft-88ft

Overall

18602

Females

6908

F45-49

6908

25K→30K

15.5 - 18.6 mi

Top 65%
×9
+181ft-148ft

Overall

18821

Females

7115

F45-49

7115

30K→20M

18.6 - 20.0 mi

Top 64%
×5
+64ft-50ft

Overall

18690

Females

7126

F45-49

7126

20M→21M

20.0 - 21.0 mi

Top 65%
×8
+106ft-24ft

Overall

18812

Females

7224

F45-49

7224

21M→35K

21.0 - 21.8 mi

Top 67%
×7
+17ft-86ft

Overall

19372

Females

7633

F45-49

7633

35K→23M

21.8 - 23.0 mi

Top 65%
×5
+23ft-63ft

Overall

18848

Females

7397

F45-49

7397

23M→24M

23.0 - 24.0 mi

Top 68%
×6
+12ft-82ft

Overall

19684

Females

7890

F45-49

7890

24M→40K

24.0 - 24.9 mi

Top 65%
×1
+6ft-20ft

Overall

18895

Females

7517

F45-49

7517

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1
+13ft-16ft

Overall

18132

Females

7110

F45-49

7110

25.2M→FINISH

25.2 - 26.2 mi

Top 68%
×2
+22ft-21ft

Overall

19727

Females

7945

F45-49

7945

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1037
Passed By
2632
Net Change
-1595
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17032
5K → 10K99644-545#17032#17577
10K → 15K51602-551#17577#18128
15K → 20K92324-232#18128#18360
20K → HALF1283-71#18360#18431
HALF → 25K129130-1#18431#18432
25K → 30K164220-56#18432#18488
30K → 20M9590+5#18488#18483
20M → 21M7787-10#18483#18493
21M → 35K5074-24#18493#18517
35K → 23M91910#18517#18517
23M → 24M40105-65#18517#18582
24M → 40K5171-20#18582#18602
40K → 25.2M3525+10#18602#18592
25.2M → FINISH5186-35#18592#18627
TOTALS10372632-1595
📊

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