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BOSTON MARATHON 2026

James Gronquist

Bib: 31984•M

WA

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M55-59)
#0 / 1491
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
26:54
3.11 mi
Rank: #20960
Start → 5K
26:54 | 8:40/mi
10K
53:15
6.21 mi
Rank: #20552 (+408)
5K → 10K
26:21 | 8:29/mi
15K
1:19:14
9.32 mi
Rank: #20140 (+412)
10K → 15K
25:59 | 8:22/mi
20K
1:45:48
12.43 mi
Rank: #19990 (+150)
15K → 20K
26:34 | 8:34/mi
HALF
1:51:23
13.11 mi
Rank: #19914 (+76)
20K → HALF
5:35 | 8:12/mi
25K
2:12:10
15.53 mi
Rank: #19759 (+155)
HALF → 25K
20:47 | 8:35/mi
30K
2:39:21
18.64 mi
Rank: #19504 (+255)
25K → 30K
27:11 | 8:45/mi
20M
2:51:04
20.00 mi
Rank: #19296 (+208)
30K → 20M
11:43 | 8:38/mi
21M
3:00:14
21.00 mi
Rank: #19146 (+150)
20M → 21M
9:10 | 9:10/mi
35K
3:06:27
21.75 mi
Rank: #19050 (+96)
21M → 35K
6:13 | 8:19/mi
23M
3:16:59
23.00 mi
Rank: #18824 (+226)
35K → 23M
10:32 | 8:26/mi
24M
3:25:03
24.00 mi
Rank: #18621 (+203)
23M → 24M
8:04 | 8:04/mi
40K
3:32:27
24.85 mi
Rank: #18554 (+67)
24M → 40K
7:24 | 8:40/mi
25.2M
3:35:43
25.20 mi
Rank: #18526 (+28)
40K → 25.2M
3:16 | 9:29/mi
FINISH
3:43:59
26.22 mi
Rank: #18400 (+126)
25.2M → FINISH
8:16 | 8:07/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:51:23
Pace8:30 /mi
2nd Half
Distance13.11 mi
Time1:52:36
Pace8:36 /mi
📊Positive Split: 1.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:56:5926:548:4026:54
8:40
-
10K
6.21 mi12:23:2053:158:3526:21
8:29
-0:11
15K
9.32 mi12:49:191:19:148:3125:59
8:22
-0:07
20K
12.43 mi13:15:531:45:488:3126:34
8:34
+0:12
HALF
13.11 mi13:21:281:51:238:305:35
8:12
-0:22
25K
15.53 mi13:42:152:12:108:3120:47
8:35
+0:23
30K
18.64 mi14:09:262:39:218:3327:11
8:45
+0:10
20M
20.00 mi14:21:092:51:048:3411:43
8:38
-0:07
21M
21.00 mi14:30:193:00:148:359:10
9:10
+0:32
35K
21.75 mi14:36:323:06:278:356:13
8:19
-0:51
23M
23.00 mi14:47:043:16:598:3410:32
8:26
+0:07
24M
24.00 mi14:55:083:25:038:338:04
8:04
-0:22
40K
24.85 mi15:02:323:32:278:337:24
8:40
+0:36
25.2M
25.20 mi15:05:483:35:438:343:16
9:29
+0:49
FINISH
26.22 mi15:14:043:43:598:338:16
8:07
-1:22

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

8:04 /mi

Average Pace

8:33 /mi

Slowest Pace

9:29 /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

3:31:33

94% of race

Time at Steady Pace

12:26

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:33 /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 mi11:56:5926:548:4026:54
8:40
#20960
10K
6.21 mi12:23:2053:158:3526:21
8:29
#20552
15K
9.32 mi12:49:191:19:148:3125:59
8:22
#20140
20K
12.43 mi13:15:531:45:488:3126:34
8:34
#19990
HALF
13.11 mi13:21:281:51:238:305:35
8:12
#19914
25K
15.53 mi13:42:152:12:108:3120:47
8:35
#19759
30K
18.64 mi14:09:262:39:218:3327:11
8:45
#19504
20M
20.00 mi14:21:092:51:048:3411:43
8:38
#19296
21M
21.00 mi14:30:193:00:148:359:10
9:10
#19146
35K
21.75 mi14:36:323:06:278:356:13
8:19
#19050
23M
23.00 mi14:47:043:16:598:3410:32
8:26
#18824
24M
24.00 mi14:55:083:25:038:338:04
8:04
#18621
40K
24.85 mi15:02:323:32:278:337:24
8:40
#18554
25.2M
25.20 mi15:05:483:35:438:343:16
9:29
#18526
FINISH
26.22 mi15:14:043:43:598:338:16
8:07
#18400
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi20960127231272319362(Top 67%)12037(Top 74%)12037(Top 807%)
10K6.21 mi3.10 mi20552+40812548+17512548+17520235(Top 70%)12428(Top 76%)12428(Top 834%)
15K9.32 mi3.11 mi20140+41212367+18112367+18119362(Top 67%)12037(Top 74%)12037(Top 807%)
20K12.43 mi3.11 mi19990+15012274+9312274+9319596(Top 68%)12105(Top 74%)12105(Top 812%)
HALF13.11 mi0.68 mi19914+7612248+2612248+2618307(Top 63%)11576(Top 71%)11576(Top 776%)
25K15.53 mi2.42 mi19759+15512176+7212176+7218985(Top 65%)11785(Top 72%)11785(Top 790%)
30K18.64 mi3.11 mi19504+25512034+14212034+14218305(Top 63%)11391(Top 70%)11391(Top 764%)
20M20.00 mi1.36 mi19296+20811926+10811926+10816942(Top 58%)10720(Top 66%)10720(Top 719%)
21M21.00 mi1.00 mi19146+15011851+7511851+7516979(Top 59%)10685(Top 65%)10685(Top 717%)
35K21.75 mi0.75 mi19050+9611799+5211799+5216474(Top 57%)10409(Top 64%)10409(Top 698%)
23M23.00 mi1.25 mi18824+22611670+12911670+12915190(Top 52%)9780(Top 60%)9780(Top 656%)
24M24.00 mi1.00 mi18621+20311566+10411566+10414200(Top 49%)9254(Top 57%)9254(Top 621%)
40K24.85 mi0.85 mi18554+6711521+4511521+4516583(Top 57%)10236(Top 63%)10236(Top 687%)
25.2M25.20 mi0.35 mi18526+2811504+1711504+1717156(Top 59%)10503(Top 64%)10503(Top 704%)
FINISH26.22 mi1.02 mi18400+12611432+7211432+7215869(Top 55%)9937(Top 61%)9937(Top 666%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 67%
×21
+97ft-345ft

Overall

19362

Males

12037

M55-59

12037

5K→10K

3.1 - 6.2 mi

Top 70%
×5
+79ft-138ft

Overall

20235

Males

12428

M55-59

12428

10K→15K

6.2 - 9.3 mi

Top 67%
×3
+67ft-78ft

Overall

19362

Males

12037

M55-59

12037

15K→20K

9.3 - 12.4 mi

Top 68%
×5
+106ft-86ft

Overall

19596

Males

12105

M55-59

12105

20K→HALF

12.4 - 13.1 mi

Top 63%
×2
+19ft-37ft

Overall

18307

Males

11576

M55-59

11576

HALF→25K

13.1 - 15.5 mi

Top 65%
×4
+66ft-88ft

Overall

18985

Males

11785

M55-59

11785

25K→30K

15.5 - 18.6 mi

Top 63%
×9
+181ft-148ft

Overall

18305

Males

11391

M55-59

11391

30K→20M

18.6 - 20.0 mi

Top 58%
×5
+64ft-50ft

Overall

16942

Males

10720

M55-59

10720

20M→21M

20.0 - 21.0 mi

Top 59%
×8
+106ft-24ft

Overall

16979

Males

10685

M55-59

10685

21M→35K

21.0 - 21.8 mi

Top 57%
×7
+17ft-86ft

Overall

16474

Males

10409

M55-59

10409

35K→23M

21.8 - 23.0 mi

Top 52%
×5
+23ft-63ft

Overall

15190

Males

9780

M55-59

9780

23M→24M

23.0 - 24.0 mi

Top 49%
×6
+12ft-82ft

Overall

14200

Males

9254

M55-59

9254

24M→40K

24.0 - 24.9 mi

Top 57%
×1
+6ft-20ft

Overall

16583

Males

10236

M55-59

10236

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1
+13ft-16ft

Overall

17156

Males

10503

M55-59

10503

25.2M→FINISH

25.2 - 26.2 mi

Top 55%
×2
+22ft-21ft

Overall

15869

Males

9937

M55-59

9937

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
3045
Passed By
485
Net Change
+2560
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20960
5K → 10K549141+408#20960#20552
10K → 15K47664+412#20552#20140
15K → 20K22777+150#20140#19990
20K → HALF793+76#19990#19914
HALF → 25K19439+155#19914#19759
25K → 30K30853+255#19759#19504
30K → 20M2146+208#19504#19296
20M → 21M17222+150#19296#19146
21M → 35K1059+96#19146#19050
35K → 23M2315+226#19050#18824
23M → 24M2074+203#18824#18621
24M → 40K9225+67#18621#18554
40K → 25.2M4618+28#18554#18526
25.2M → FINISH14519+126#18526#18400
TOTALS3045485+2560
📊

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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Export & Support

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing