Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing

David Boonstra

Bib: 14095MAge: N/A

NJ

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 47%
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Top 49%
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
23:08
3.11 mi
Rank: #12312
Start5K
23:08 | 7:27/mi
10K
46:23
6.21 mi
Rank: #12528 (-216)
5K10K
23:15 | 7:30/mi
15K
1:09:33
9.32 mi
Rank: #12486 (+42)
10K15K
23:10 | 7:28/mi
20K
1:36:00
12.43 mi
Rank: #14502 (-2016)
15K20K
26:27 | 8:31/mi
HALF
1:41:01
13.11 mi
Rank: #14362 (+140)
20KHALF
5:01 | 7:22/mi
25K
1:59:16
15.53 mi
Rank: #13878 (+484)
HALF25K
18:15 | 7:32/mi
30K
2:22:54
18.64 mi
Rank: #13249 (+629)
25K30K
23:38 | 7:37/mi
20M
2:33:20
20.00 mi
Rank: #13008 (+241)
30K20M
10:26 | 7:41/mi
21M
2:41:21
21.00 mi
Rank: #12818 (+190)
20M21M
8:01 | 8:01/mi
35K
2:47:20
21.75 mi
Rank: #12871 (-53)
21M35K
5:59 | 8:00/mi
23M
2:57:44
23.00 mi
Rank: #12970 (-99)
35K23M
10:24 | 8:19/mi
24M
3:06:20
24.00 mi
Rank: #13172 (-202)
23M24M
8:36 | 8:36/mi
40K
3:13:35
24.85 mi
Rank: #13220 (-48)
24M40K
7:15 | 8:29/mi
25.2M
3:16:51
25.20 mi
Rank: #13306 (-86)
40K25.2M
3:16 | 9:29/mi
FINISH
3:25:49
26.22 mi
Rank: #13641 (-335)
25.2MFINISH
8:58 | 8:48/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
Time1:41:01
Pace7:43 /mi
2nd Half
Distance13.11 mi
Time1:44:48
Pace8:00 /mi
📊Positive Split: 3.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:1723:087:2723:08
7:27
-
10K
6.21 mi11:16:3246:237:2823:15
7:30
+0:03
15K
9.32 mi11:39:421:09:337:2823:10
7:28
-0:02
20K
12.43 mi12:06:091:36:007:4426:27
8:31
+1:03
HALF
13.11 mi12:11:101:41:017:435:01
7:22
-1:09
25K
15.53 mi12:29:251:59:167:4118:15
7:32
+0:10
30K
18.64 mi12:53:032:22:547:4023:38
7:37
+0:05
20M
20.00 mi13:03:292:33:207:4110:26
7:41
+0:04
21M
21.00 mi13:11:302:41:217:428:01
8:01
+0:20
35K
21.75 mi13:17:292:47:207:425:59
8:00
-0:01
23M
23.00 mi13:27:532:57:447:4410:24
8:19
+0:19
24M
24.00 mi13:36:293:06:207:468:36
8:36
+0:17
40K
24.85 mi13:43:443:13:357:487:15
8:29
-0:07
25.2M
25.20 mi13:47:003:16:517:493:16
9:29
+1:00
FINISH
26.22 mi13:55:583:25:497:528:58
8:48
-0:41

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

7:22 /mi

Average Pace

7:51 /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

2:06:53

62% of race

Time at Steady Pace

14:00

7% of race

Time at Slower Pace

1:04:56

32% of race

Average Pace: 7:51 /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 mi10:53:1723:087:2723:08
7:27
#12312
10K
6.21 mi11:16:3246:237:2823:15
7:30
#12528
15K
9.32 mi11:39:421:09:337:2823:10
7:28
#12486
20K
12.43 mi12:06:091:36:007:4426:27
8:31
#14502
HALF
13.11 mi12:11:101:41:017:435:01
7:22
#14362
25K
15.53 mi12:29:251:59:167:4118:15
7:32
#13878
30K
18.64 mi12:53:032:22:547:4023:38
7:37
#13249
20M
20.00 mi13:03:292:33:207:4110:26
7:41
#13008
21M
21.00 mi13:11:302:41:217:428:01
8:01
#12818
35K
21.75 mi13:17:292:47:207:425:59
8:00
#12871
23M
23.00 mi13:27:532:57:447:4410:24
8:19
#12970
24M
24.00 mi13:36:293:06:207:468:36
8:36
#13172
40K
24.85 mi13:43:443:13:357:487:15
8:29
#13220
25.2M
25.20 mi13:47:003:16:517:493:16
9:29
#13306
FINISH
26.22 mi13:55:583:25:497:528:58
8:48
#13641
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 mi123129166916612436(Top 43%)9128(Top 56%)9128(Top 378%)
10K6.21 mi3.10 mi12528-2169238-729238-7212785(Top 44%)9311(Top 57%)9311(Top 386%)
15K9.32 mi3.11 mi12486+429199+399199+3912436(Top 43%)9128(Top 56%)9128(Top 378%)
20K12.43 mi3.11 mi14502-201610010-81110010-81119371(Top 67%)12004(Top 73%)12004(Top 497%)
HALF13.11 mi0.68 mi14362+1409953+579953+5711700(Top 40%)8820(Top 54%)8820(Top 366%)
25K15.53 mi2.42 mi13878+4849735+2189735+21811625(Top 40%)8623(Top 53%)8623(Top 357%)
30K18.64 mi3.11 mi13249+6299409+3269409+32610494(Top 36%)7953(Top 49%)7953(Top 330%)
20M20.00 mi1.36 mi13008+2419274+1359274+13510464(Top 36%)7815(Top 48%)7815(Top 324%)
21M21.00 mi1.00 mi12818+1909168+1069168+1069992(Top 34%)7473(Top 46%)7473(Top 310%)
35K21.75 mi0.75 mi12871-539186-189186-1814437(Top 50%)9506(Top 58%)9506(Top 394%)
23M23.00 mi1.25 mi12970-999212-269212-2614511(Top 50%)9462(Top 58%)9462(Top 392%)
24M24.00 mi1.00 mi13172-2029285-739285-7317443(Top 60%)10666(Top 65%)10666(Top 442%)
40K24.85 mi0.85 mi13220-489279+69279+615507(Top 53%)9755(Top 60%)9755(Top 404%)
25.2M25.20 mi0.35 mi13306-869303-249303-2417119(Top 59%)10466(Top 64%)10466(Top 434%)
FINISH26.22 mi1.02 mi13641-3359416-1139416-11319613(Top 68%)11653(Top 71%)11653(Top 483%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21
+97ft-345ft

Overall

12436

Males

9128

M45-49

9128

5K→10K

3.1 - 6.2 mi

Top 44%
×5
+79ft-138ft

Overall

12785

Males

9311

M45-49

9311

10K→15K

6.2 - 9.3 mi

Top 43%
×3
+67ft-78ft

Overall

12436

Males

9128

M45-49

9128

15K→20K

9.3 - 12.4 mi

Top 67%
×5
+106ft-86ft

Overall

19371

Males

12004

M45-49

12004

20K→HALF

12.4 - 13.1 mi

Top 40%
×2
+19ft-37ft

Overall

11700

Males

8820

M45-49

8820

HALF→25K

13.1 - 15.5 mi

Top 40%
×4
+66ft-88ft

Overall

11625

Males

8623

M45-49

8623

25K→30K

15.5 - 18.6 mi

Top 36%
×9
+181ft-148ft

Overall

10494

Males

7953

M45-49

7953

30K→20M

18.6 - 20.0 mi

Top 36%
×5
+64ft-50ft

Overall

10464

Males

7815

M45-49

7815

20M→21M

20.0 - 21.0 mi

Top 34%
×8
+106ft-24ft

Overall

9992

Males

7473

M45-49

7473

21M→35K

21.0 - 21.8 mi

Top 50%
×7
+17ft-86ft

Overall

14437

Males

9506

M45-49

9506

35K→23M

21.8 - 23.0 mi

Top 50%
×5
+23ft-63ft

Overall

14511

Males

9462

M45-49

9462

23M→24M

23.0 - 24.0 mi

Top 60%
×6
+12ft-82ft

Overall

17443

Males

10666

M45-49

10666

24M→40K

24.0 - 24.9 mi

Top 53%
×1
+6ft-20ft

Overall

15507

Males

9755

M45-49

9755

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1
+13ft-16ft

Overall

17119

Males

10466

M45-49

10466

25.2M→FINISH

25.2 - 26.2 mi

Top 68%
×2
+22ft-21ft

Overall

19613

Males

11653

M45-49

11653

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2304*
Passed By
1447
Net Change
-1329
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12312
5K10K164200-216#12312#12528
10K15K212*170+42#12528#12486
15K20K6200-2016#12486#14502
20KHALF1400+140#14502#14362
HALF25K488*4+484#14362#13878
25K30K637*8+629#13878#13249
30K20M250*9+241#13249#13008
20M21M202*12+190#13008#12818
21M35K3386-53#12818#12871
35K23M61160-99#12871#12970
23M24M30200-202#12970#13172
24M40K5199-48#13172#13220
40K25.2M1399-86#13220#13306
25.2MFINISH17200-335#13306#13641
TOTALS2304*1447-1329

* 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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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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