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BOSTON MARATHON 2026

Nathalie Dumais

Bib: 24393•F

QC

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Age Group (F55-59)
#0 / 951
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
27:23
3.11 mi
Rank: #21772
Start → 5K
27:23 | 8:49/mi
10K
55:42
6.21 mi
Rank: #22589 (-817)
5K → 10K
28:19 | 9:07/mi
15K
1:24:49
9.32 mi
Rank: #23142 (-553)
10K → 15K
29:07 | 9:23/mi
20K
1:54:57
12.43 mi
Rank: #23555 (-413)
15K → 20K
30:08 | 9:42/mi
HALF
2:01:09
13.11 mi
Rank: #23532 (+23)
20K → HALF
6:12 | 9:06/mi
25K
2:26:18
15.53 mi
Rank: #23837 (-305)
HALF → 25K
25:09 | 10:23/mi
30K
2:59:47
18.64 mi
Rank: #24048 (-211)
25K → 30K
33:29 | 10:47/mi
20M
3:14:38
20.00 mi
Rank: #24118 (-70)
30K → 20M
14:51 | 10:56/mi
21M
3:26:32
21.00 mi
Rank: #24161 (-43)
20M → 21M
11:54 | 11:54/mi
35K
3:34:22
21.75 mi
Rank: #24174 (-13)
21M → 35K
7:50 | 10:29/mi
23M
3:48:15
23.00 mi
Rank: #24206 (-32)
35K → 23M
13:53 | 11:06/mi
24M
3:58:31
24.00 mi
Rank: #24151 (+55)
23M → 24M
10:16 | 10:16/mi
40K
4:07:47
24.85 mi
Rank: #24139 (+12)
24M → 40K
9:16 | 10:51/mi
25.2M
4:12:02
25.20 mi
Rank: #24159 (-20)
40K → 25.2M
4:15 | 12:20/mi
FINISH
4:22:30
26.22 mi
Rank: #24182 (-23)
25.2M → FINISH
10:28 | 10:17/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:01:09
Pace9:15 /mi
2nd Half
Distance13.11 mi
Time2:21:21
Pace10:47 /mi
📊Positive Split: 16.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:31:1627:238:4927:23
8:49
-
10K
6.21 mi11:59:3555:428:5828:19
9:07
+0:18
15K
9.32 mi12:28:421:24:499:0629:07
9:23
+0:16
20K
12.43 mi12:58:501:54:579:1530:08
9:42
+0:19
HALF
13.11 mi13:05:022:01:099:156:12
9:06
-0:36
25K
15.53 mi13:30:112:26:189:2625:09
10:23
+1:17
30K
18.64 mi14:03:402:59:479:3933:29
10:47
+0:24
20M
20.00 mi14:18:313:14:389:4414:51
10:56
+0:09
21M
21.00 mi14:30:253:26:329:5111:54
11:54
+0:58
35K
21.75 mi14:38:153:34:229:527:50
10:29
-1:25
23M
23.00 mi14:52:083:48:159:5613:53
11:06
+0:37
24M
24.00 mi15:02:243:58:319:5710:16
10:16
-0:50
40K
24.85 mi15:11:404:07:479:599:16
10:51
+0:35
25.2M
25.20 mi15:15:554:12:0210:014:15
12:20
+1:29
FINISH
26.22 mi15:26:234:22:3010:0210:28
10:17
-2:03

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

8:49 /mi

Average Pace

10:01 /mi

Slowest Pace

12:20 /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

2:01:09

46% of race

Time at Steady Pace

1:36:28

37% of race

Time at Slower Pace

44:53

17% of race

Average Pace: 10:01 /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 mi11:31:1627:238:4927:23
8:49
#21772
10K
6.21 mi11:59:3555:428:5828:19
9:07
#22589
15K
9.32 mi12:28:421:24:499:0629:07
9:23
#23142
20K
12.43 mi12:58:501:54:579:1530:08
9:42
#23555
HALF
13.11 mi13:05:022:01:099:156:12
9:06
#23532
25K
15.53 mi13:30:112:26:189:2625:09
10:23
#23837
30K
18.64 mi14:03:402:59:479:3933:29
10:47
#24048
20M
20.00 mi14:18:313:14:389:4414:51
10:56
#24118
21M
21.00 mi14:30:253:26:329:5111:54
11:54
#24161
35K
21.75 mi14:38:153:34:229:527:50
10:29
#24174
23M
23.00 mi14:52:083:48:159:5613:53
11:06
#24206
24M
24.00 mi15:02:243:58:319:5710:16
10:16
#24151
40K
24.85 mi15:11:404:07:479:599:16
10:51
#24139
25.2M
25.20 mi15:15:554:12:0210:014:15
12:20
#24159
FINISH
26.22 mi15:26:234:22:3010:0210:28
10:17
#24182
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi217728571857124064(Top 83%)9683(Top 77%)9683(Top 1018%)
10K6.21 mi3.10 mi22589-8178953-3828953-38223308(Top 80%)9309(Top 74%)9309(Top 979%)
15K9.32 mi3.11 mi23142-5539218-2659218-26524064(Top 83%)9683(Top 77%)9683(Top 1018%)
20K12.43 mi3.11 mi23555-4139434-2169434-21624309(Top 84%)9835(Top 78%)9835(Top 1034%)
HALF13.11 mi0.68 mi23532+239420+149420+1423161(Top 80%)9252(Top 74%)9252(Top 973%)
25K15.53 mi2.42 mi23837-3059585-1659585-16525174(Top 87%)10321(Top 82%)10321(Top 1085%)
30K18.64 mi3.11 mi24048-2119722-1379722-13724895(Top 86%)10312(Top 82%)10312(Top 1084%)
20M20.00 mi1.36 mi24118-709768-469768-4624792(Top 85%)10334(Top 82%)10334(Top 1087%)
21M21.00 mi1.00 mi24161-439806-389806-3824907(Top 86%)10449(Top 83%)10449(Top 1099%)
35K21.75 mi0.75 mi24174-139811-59811-524268(Top 84%)10131(Top 81%)10131(Top 1065%)
23M23.00 mi1.25 mi24206-329868-579868-5724693(Top 85%)10410(Top 83%)10410(Top 1095%)
24M24.00 mi1.00 mi24151+559855+139855+1323536(Top 81%)9826(Top 78%)9826(Top 1033%)
40K24.85 mi0.85 mi24139+129860-59860-523923(Top 82%)10090(Top 80%)10090(Top 1061%)
25.2M25.20 mi0.35 mi24159-209880-209880-2025051(Top 86%)10644(Top 85%)10644(Top 1119%)
FINISH26.22 mi1.02 mi24182-239909-299909-2924535(Top 85%)10387(Top 83%)10387(Top 1092%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 83%
×21
+97ft-345ft

Overall

24064

Females

9683

F55-59

9683

5K→10K

3.1 - 6.2 mi

Top 80%
×5
+79ft-138ft

Overall

23308

Females

9309

F55-59

9309

10K→15K

6.2 - 9.3 mi

Top 83%
×3
+67ft-78ft

Overall

24064

Females

9683

F55-59

9683

15K→20K

9.3 - 12.4 mi

Top 84%
×5
+106ft-86ft

Overall

24309

Females

9835

F55-59

9835

20K→HALF

12.4 - 13.1 mi

Top 80%
×2
+19ft-37ft

Overall

23161

Females

9252

F55-59

9252

HALF→25K

13.1 - 15.5 mi

Top 87%
×4
+66ft-88ft

Overall

25174

Females

10321

F55-59

10321

25K→30K

15.5 - 18.6 mi

Top 86%
×9
+181ft-148ft

Overall

24895

Females

10312

F55-59

10312

30K→20M

18.6 - 20.0 mi

Top 85%
×5
+64ft-50ft

Overall

24792

Females

10334

F55-59

10334

20M→21M

20.0 - 21.0 mi

Top 86%
×8
+106ft-24ft

Overall

24907

Females

10449

F55-59

10449

21M→35K

21.0 - 21.8 mi

Top 84%
×7
+17ft-86ft

Overall

24268

Females

10131

F55-59

10131

35K→23M

21.8 - 23.0 mi

Top 85%
×5
+23ft-63ft

Overall

24693

Females

10410

F55-59

10410

23M→24M

23.0 - 24.0 mi

Top 81%
×6
+12ft-82ft

Overall

23536

Females

9826

F55-59

9826

24M→40K

24.0 - 24.9 mi

Top 82%
×1
+6ft-20ft

Overall

23923

Females

10090

F55-59

10090

40K→25.2M

24.9 - 25.2 mi

Top 86%
×1
+13ft-16ft

Overall

25051

Females

10644

F55-59

10644

25.2M→FINISH

25.2 - 26.2 mi

Top 85%
×2
+22ft-21ft

Overall

24535

Females

10387

F55-59

10387

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
664
Passed By
3074
Net Change
-2410
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21772
5K → 10K65882-817#21772#22589
10K → 15K38591-553#22589#23142
15K → 20K47460-413#23142#23555
20K → HALF3916+23#23555#23532
HALF → 25K37342-305#23532#23837
25K → 30K82293-211#23837#24048
30K → 20M45115-70#24048#24118
20M → 21M5194-43#24118#24161
21M → 35K2437-13#24161#24174
35K → 23M6496-32#24174#24206
23M → 24M7924+55#24206#24151
24M → 40K4432+12#24151#24139
40K → 25.2M1535-20#24139#24159
25.2M → FINISH3457-23#24159#24182
TOTALS6643074-2410
📊

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