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BOSTON MARATHON 2023

Pierre Gunnarsson

Bib: 3421•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 12%
Gender (Male)
#0 / 15176
Top 20%
Masters (Masters Men)
#0 / 9891
Top 8%
Division (M50-54)
#0 / 2052
Top 5%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
6:43/mi
20:52
↑ 97↓ 3451.5%
10K· 6.21 mi
6:38/mi
41:30
↑ 79↓ 1380.4%
15K· 9.32 mi
6:39/mi
1:02:11
↑ 67↓ 78
20K· 12.43 mi
6:45/mi
1:23:10
↑ 106↓ 860.1%
Half· 13.11 mi
6:39/mi
1:27:42
↑ 19↓ 370.5%
25K· 15.53 mi
6:47/mi
1:44:10
↑ 66↓ 880.2%
30K· 18.64 mi
6:55/mi
2:05:40
↑ 181↓ 1480.2%
20M
6:55/mi
2:15:04
↑ 64↓ 500.2%
21M
7:09/mi
2:22:13
↑ 106↓ 241.6%
35K· 21.75 mi
6:38/mi
2:27:11
↑ 17↓ 861.7%
23M
6:55/mi
2:35:51
↑ 23↓ 630.6%
24M
6:39/mi
2:42:30
↓ 821.3%
40K· 24.85 mi
6:48/mi
2:48:19
↓ 200.3%
25.2M
7:12/mi
2:50:48
↑ 13↓ 160.2%
Finish· 26.22 mi
6:17/mi
2:57:12
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:42
Pace6:41 /mi
2nd Half
Distance13.11 mi
Time1:29:30
Pace6:50 /mi
📊Positive Split: 2.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:0020:526:4320:52
6:43
-
10K
6.21 mi10:42:3841:306:4120:38
6:38
-0:05
15K
9.32 mi11:03:191:02:116:4020:41
6:39
+0:01
20K
12.43 mi11:24:181:23:106:4220:59
6:45
+0:06
Half
13.11 mi11:28:501:27:426:414:32
6:39
-0:06
25K
15.53 mi11:45:181:44:106:4216:28
6:47
+0:08
30K
18.64 mi12:06:482:05:406:4421:30
6:55
+0:08
20M
20.00 mi12:16:122:15:046:459:24
6:55
0:00
21M
21.00 mi12:23:212:22:136:467:09
7:09
+0:14
35K
21.75 mi12:28:192:27:116:464:58
6:38
-0:31
23M
23.00 mi12:36:592:35:516:478:40
6:55
+0:17
24M
24.00 mi12:43:382:42:306:466:39
6:39
-0:16
40K
24.85 mi12:49:272:48:196:465:49
6:48
+0:09
25.2M
25.20 mi12:51:562:50:486:472:29
7:12
+0:24
Finish
26.22 mi12:58:202:57:126:466:24
6:17
-0:55

Checkpoints & Pacing

📈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

6:17 /mi

Average Pace

6:46 /mi

Slowest Pace

7:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:08:00

72% of race

Time at Steady Pace

49:12

28% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:45 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:22:0020:526:4320:52
6:43
#3807
10K
6.21 mi10:42:3841:306:4120:38
6:38
#3765
15K
9.32 mi11:03:191:02:116:4020:41
6:39
#3727
20K
12.43 mi11:24:181:23:106:4220:59
6:45
#3789
Half
13.11 mi11:28:501:27:426:414:32
6:39
#3779
25K
15.53 mi11:45:181:44:106:4216:28
6:47
#3822
30K
18.64 mi12:06:482:05:406:4421:30
6:55
#3779
20M
20.00 mi12:16:122:15:046:459:24
6:55
#3724
21M
21.00 mi12:23:212:22:136:467:09
7:09
#3634
35K
21.75 mi12:28:192:27:116:464:58
6:38
#3598
23M
23.00 mi12:36:592:35:516:478:40
6:55
#3535
24M
24.00 mi12:43:382:42:306:466:39
6:39
#3487
40K
24.85 mi12:49:272:48:196:465:49
6:48
#3434
25.2M
25.20 mi12:51:562:50:486:472:29
7:12
#3415
Finish
26.22 mi12:58:202:57:126:466:24
6:17
#3248
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi3807357835783733(Top 14%)3517(Top 23%)3517(Top 171%)
10K6.21 mi3.10 mi3765+423548+303548+303801(Top 14%)3585(Top 24%)3585(Top 175%)
15K9.32 mi3.11 mi3727+383518+303518+303733(Top 14%)3517(Top 23%)3517(Top 171%)
20K12.43 mi3.11 mi3789-623579-613579-613996(Top 15%)3750(Top 25%)3750(Top 183%)
Half13.11 mi0.68 mi3779+103571+83571+83751(Top 14%)3535(Top 23%)3535(Top 172%)
25K15.53 mi2.42 mi3822-433609-383609-384050(Top 15%)3796(Top 25%)3796(Top 185%)
30K18.64 mi3.11 mi3779+433566+433566+433778(Top 14%)3542(Top 23%)3542(Top 173%)
20M20.00 mi1.36 mi3724+553515+513515+513511(Top 13%)3276(Top 22%)3276(Top 160%)
21M21.00 mi1.00 mi3634+903436+793436+792846(Top 11%)2671(Top 18%)2671(Top 130%)
35K21.75 mi0.75 mi3598+363401+353401+353212(Top 12%)2997(Top 20%)2997(Top 146%)
23M23.00 mi1.25 mi3535+633339+623339+623358(Top 13%)3111(Top 20%)3111(Top 152%)
24M24.00 mi1.00 mi3487+483295+443295+442831(Top 11%)2632(Top 17%)2632(Top 128%)
40K24.85 mi0.85 mi3434+533244+513244+512840(Top 11%)2614(Top 17%)2614(Top 127%)
25.2M25.20 mi0.35 mi3415+193226+183226+182530(Top 10%)2343(Top 15%)2343(Top 114%)
Finish26.22 mi1.02 mi3248+1673072+1543072+1541563(Top 6%)1478(Top 10%)1478(Top 72%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21story building
+97ft-345ft

Overall

3733

Males

3517

M50-54

3517

5K→10K

3.1 - 6.2 mi

Top 14%
×5story building
+79ft-138ft

Overall

3801

Males

3585

M50-54

3585

10K→15K

6.2 - 9.3 mi

Top 14%
×3story building
+67ft-78ft

Overall

3733

Males

3517

M50-54

3517

15K→20K

9.3 - 12.4 mi

Top 15%
×5story building
+106ft-86ft

Overall

3996

Males

3750

M50-54

3750

20K→Half

12.4 - 13.1 mi

Top 14%
×2story building
+19ft-37ft

Overall

3751

Males

3535

M50-54

3535

Half→25K

13.1 - 15.5 mi

Top 15%
×4story building
+66ft-88ft

Overall

4050

Males

3796

M50-54

3796

25K→30K

15.5 - 18.6 mi

Top 14%
×9story building
+181ft-148ft

Overall

3778

Males

3542

M50-54

3542

30K→20M

18.6 - 20.0 mi

Top 13%
×5story building
+64ft-50ft

Overall

3511

Males

3276

M50-54

3276

20M→21M

20.0 - 21.0 mi

Top 11%
×8story building
+106ft-24ft

Overall

2846

Males

2671

M50-54

2671

21M→35K

21.0 - 21.8 mi

Top 12%
×7story building
+17ft-86ft

Overall

3212

Males

2997

M50-54

2997

35K→23M

21.8 - 23.0 mi

Top 13%
×5story building
+23ft-63ft

Overall

3358

Males

3111

M50-54

3111

23M→24M

23.0 - 24.0 mi

Top 11%
×6story building
+12ft-82ft

Overall

2831

Males

2632

M50-54

2632

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

2840

Males

2614

M50-54

2614

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2530

Males

2343

M50-54

2343

25.2M→Finish

25.2 - 26.2 mi

Top 6%
×2story building
+22ft-21ft

Overall

1563

Males

1478

M50-54

1478

Passing Analysis

Category:
Athletes Passed
1316
Passed By
757
Net Change
+559
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3807
5K → 10K232190+42#3807#3765
10K → 15K12688+38#3765#3727
15K → 20K79141-62#3727#3789
20K → Half2313+10#3789#3779
Half → 25K71114-43#3779#3822
25K → 30K12380+43#3822#3779
30K → 20M8328+55#3779#3724
20M → 21M10212+90#3724#3634
21M → 35K5317+36#3634#3598
35K → 23M9330+63#3598#3535
23M → 24M6315+48#3535#3487
24M → 40K7017+53#3487#3434
40K → 25.2M2910+19#3434#3415
25.2M → Finish1692+167#3415#3248
TOTALS1316757+559
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing