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BOSTON MARATHON 2023

Geoff Simonds

ME

Bib: 27515 M

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

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:26/mi
26:12
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:16/mi
51:52
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:18/mi
1:17:38
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:39/mi
1:44:32
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:51/mi
1:50:34
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
9:36/mi
2:13:51
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
10:16/mi
2:45:45
↑ 181↓ 1480.2%
138 ft elev
20M
10:20/mi
2:59:48
↑ 64↓ 500.2%
148 ft elev
21M
11:47/mi
3:11:35
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
10:06/mi
3:19:08
↑ 17↓ 861.7%
156 ft elev
23M
10:34/mi
3:32:22
↑ 23↓ 630.6%
116 ft elev
24M
9:59/mi
3:42:21
↓ 821.3%
34 ft elev
40K· 24.85 mi
10:20/mi
3:51:11
↓ 200.3%
20 ft elev
25.2M
11:50/mi
3:55:16
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
9:50/mi
4:05:17
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:34
Pace8:26 /mi
2nd Half
Distance13.11 mi
Time2:14:43
Pace10:17 /mi
📊Positive Split: 21.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:42:5926:128:2626:12
8:26
-
10K
6.21 mi12:08:3951:528:2125:40
8:16
-0:10
15K
9.32 mi12:34:251:17:388:2025:46
8:18
+0:02
20K
12.43 mi13:01:191:44:328:2526:54
8:39
+0:21
Half
13.11 mi13:07:211:50:348:266:02
8:51
+0:12
25K
15.53 mi13:30:382:13:518:3723:17
9:36
+0:45
30K
18.64 mi14:02:322:45:458:5331:54
10:16
+0:40
20M
20.00 mi14:16:352:59:488:5914:03
10:20
+0:04
21M
21.00 mi14:28:223:11:359:0711:47
11:47
+1:27
35K
21.75 mi14:35:553:19:089:097:33
10:06
-1:41
23M
23.00 mi14:49:093:32:229:1413:14
10:34
+0:28
24M
24.00 mi14:59:083:42:219:169:59
9:59
-0:35
40K
24.85 mi15:07:583:51:119:188:50
10:20
+0:21
25.2M
25.20 mi15:12:033:55:169:204:05
11:50
+1:30
Finish
26.22 mi15:22:044:05:179:2210:01
9:50
-2:00

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

8:16 /mi

Average Pace

9:22 /mi

Slowest Pace

11:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:50:34

45% of race

Time at Steady Pace

1:45:37

43% of race

Time at Slower Pace

29:06

12% of race

Average Pace: 9:21 /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 mi11:42:5926:128:2626:12
8:26
#17104
10K
6.21 mi12:08:3951:528:2125:40
8:16
#16829
15K
9.32 mi12:34:251:17:388:2025:46
8:18
#16718
20K
12.43 mi13:01:191:44:328:2526:54
8:39
#17018
Half
13.11 mi13:07:211:50:348:266:02
8:51
#17161
25K
15.53 mi13:30:382:13:518:3723:17
9:36
#18054
30K
18.64 mi14:02:322:45:458:5331:54
10:16
#19060
20M
20.00 mi14:16:352:59:488:5914:03
10:20
#19317
21M
21.00 mi14:28:223:11:359:0711:47
11:47
#19609
35K
21.75 mi14:35:553:19:089:097:33
10:06
#19705
23M
23.00 mi14:49:093:32:229:1413:14
10:34
#19871
24M
24.00 mi14:59:083:42:219:169:59
9:59
#19923
40K
24.85 mi15:07:583:51:119:188:50
10:20
#19989
25.2M
25.20 mi15:12:033:55:169:204:05
11:50
#20031
Finish
26.22 mi15:22:044:05:179:2210:01
9:50
#20062
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi17104110861108616497(Top 62%)10888(Top 72%)10888(Top 531%)
10K6.21 mi3.10 mi16829+27511017+6911017+6916654(Top 63%)10970(Top 72%)10970(Top 535%)
15K9.32 mi3.11 mi16718+11110956+6110956+6116497(Top 62%)10888(Top 72%)10888(Top 531%)
20K12.43 mi3.11 mi17018-30011062-10611062-10617855(Top 67%)11412(Top 75%)11412(Top 556%)
Half13.11 mi0.68 mi17161-14311120-5811120-5819698(Top 74%)12183(Top 80%)12183(Top 594%)
25K15.53 mi2.42 mi18054-89311469-34911469-34921136(Top 79%)12772(Top 84%)12772(Top 622%)
30K18.64 mi3.11 mi19060-100611867-39811867-39821703(Top 82%)12940(Top 85%)12940(Top 631%)
20M20.00 mi1.36 mi19317-25711957-9011957-9021357(Top 80%)12720(Top 84%)12720(Top 620%)
21M21.00 mi1.00 mi19609-29212069-11212069-11222380(Top 84%)13144(Top 87%)13144(Top 641%)
35K21.75 mi0.75 mi19705-9612108-3912108-3921523(Top 81%)12718(Top 84%)12718(Top 620%)
23M23.00 mi1.25 mi19871-16612159-5112159-5121463(Top 81%)12671(Top 83%)12671(Top 617%)
24M24.00 mi1.00 mi19923-5212175-1612175-1620735(Top 78%)12308(Top 81%)12308(Top 600%)
40K24.85 mi0.85 mi19989-6612189-1412189-1420806(Top 78%)12289(Top 81%)12289(Top 599%)
25.2M25.20 mi0.35 mi20031-4212202-1312202-1322195(Top 83%)12936(Top 85%)12936(Top 630%)
Finish26.22 mi1.02 mi20062-3112207-512207-521240(Top 80%)12532(Top 83%)12532(Top 611%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21story building
+97ft-345ft

Overall

16497

Males

10888

M50-54

10888

5K→10K

3.1 - 6.2 mi

Top 63%
×5story building
+79ft-138ft

Overall

16654

Males

10970

M50-54

10970

10K→15K

6.2 - 9.3 mi

Top 62%
×3story building
+67ft-78ft

Overall

16497

Males

10888

M50-54

10888

15K→20K

9.3 - 12.4 mi

Top 67%
×5story building
+106ft-86ft

Overall

17855

Males

11412

M50-54

11412

20K→Half

12.4 - 13.1 mi

Top 74%
×2story building
+19ft-37ft

Overall

19698

Males

12183

M50-54

12183

Half→25K

13.1 - 15.5 mi

Top 79%
×4story building
+66ft-88ft

Overall

21136

Males

12772

M50-54

12772

25K→30K

15.5 - 18.6 mi

Top 82%
×9story building
+181ft-148ft

Overall

21703

Males

12940

M50-54

12940

30K→20M

18.6 - 20.0 mi

Top 80%
×5story building
+64ft-50ft

Overall

21357

Males

12720

M50-54

12720

20M→21M

20.0 - 21.0 mi

Top 84%
×8story building
+106ft-24ft

Overall

22380

Males

13144

M50-54

13144

21M→35K

21.0 - 21.8 mi

Top 81%
×7story building
+17ft-86ft

Overall

21523

Males

12718

M50-54

12718

35K→23M

21.8 - 23.0 mi

Top 81%
×5story building
+23ft-63ft

Overall

21463

Males

12671

M50-54

12671

23M→24M

23.0 - 24.0 mi

Top 78%
×6story building
+12ft-82ft

Overall

20735

Males

12308

M50-54

12308

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

20806

Males

12289

M50-54

12289

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

22195

Males

12936

M50-54

12936

25.2M→Finish

25.2 - 26.2 mi

Top 80%
×2story building
+22ft-21ft

Overall

21240

Males

12532

M50-54

12532

Passing Analysis

Category:
Athletes Passed
1090
Passed By
4048
Net Change
-2958
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17104
5K → 10K476201+275#17104#16829
10K → 15K255144+111#16829#16718
15K → 20K97397-300#16718#17018
20K → Half3146-143#17018#17161
Half → 25K17910-893#17161#18054
25K → 30K301036-1006#18054#19060
30K → 20M30287-257#19060#19317
20M → 21M26318-292#19317#19609
21M → 35K18114-96#19609#19705
35K → 23M34200-166#19705#19871
23M → 24M3688-52#19871#19923
24M → 40K3298-66#19923#19989
40K → 25.2M648-42#19989#20031
25.2M → Finish3061-31#20031#20062
TOTALS10904048-2958
📊

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