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BOSTON MARATHON 2023

Roger Dahlgran

Bib: 24047•M

AZ

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M70-74)
#0 / 213
Top 22%
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
9:04/mi
28:10
↑ 97↓ 3451.5%
10K· 6.21 mi
9:02/mi
56:13
↑ 79↓ 1380.4%
15K· 9.32 mi
8:58/mi
1:24:03
↑ 67↓ 78
20K· 12.43 mi
9:02/mi
1:52:06
↑ 106↓ 860.1%
Half· 13.11 mi
8:49/mi
1:58:07
↑ 19↓ 370.5%
25K· 15.53 mi
9:10/mi
2:20:21
↑ 66↓ 880.2%
30K· 18.64 mi
9:29/mi
2:49:50
↑ 181↓ 1480.2%
20M
9:40/mi
3:02:58
↑ 64↓ 500.2%
21M
9:40/mi
3:12:38
↑ 106↓ 241.6%
35K· 21.75 mi
9:40/mi
3:19:52
↑ 17↓ 861.7%
23M
9:13/mi
3:31:24
↑ 23↓ 630.6%
24M
9:37/mi
3:41:01
↓ 821.3%
40K· 24.85 mi
9:37/mi
3:49:14
↓ 200.3%
25.2M
10:41/mi
3:52:55
↑ 13↓ 160.2%
Finish· 26.22 mi
9:49/mi
4:02:55
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:58:07
Pace9:01 /mi
2nd Half
Distance13.11 mi
Time2:04:48
Pace9:31 /mi
📊Positive Split: 5.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:2528:109:0428:10
9:04
-
10K
6.21 mi12:11:2856:139:0328:03
9:02
-0:02
15K
9.32 mi12:39:181:24:039:0127:50
8:58
-0:04
20K
12.43 mi13:07:211:52:069:0128:03
9:02
+0:04
Half
13.11 mi13:13:221:58:079:016:01
8:49
-0:13
25K
15.53 mi13:35:362:20:219:0222:14
9:10
+0:21
30K
18.64 mi14:05:052:49:509:0729:29
9:29
+0:19
20M
20.00 mi14:18:133:02:589:0913:08
9:40
+0:11
21M
21.00 mi14:27:533:12:389:109:40
9:40
0:00
35K
21.75 mi14:35:073:19:529:117:14
9:40
0:00
23M
23.00 mi14:46:393:31:249:1111:32
9:13
-0:27
24M
24.00 mi14:56:163:41:019:139:37
9:37
+0:24
40K
24.85 mi15:04:293:49:149:138:13
9:37
0:00
25.2M
25.20 mi15:08:103:52:559:153:41
10:41
+1:04
Finish
26.22 mi15:18:104:02:559:1610:00
9:49
-0:52

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

8:49 /mi

Average Pace

9:16 /mi

Slowest Pace

10:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:31:53

63% of race

Time at Steady Pace

1:17:21

32% of race

Time at Slower Pace

13:41

6% of race

Average Pace: 9:16 /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 mi11:43:2528:109:0428:10
9:04
#20726
10K
6.21 mi12:11:2856:139:0328:03
9:02
#20835
15K
9.32 mi12:39:181:24:039:0127:50
8:58
#20641
20K
12.43 mi13:07:211:52:069:0128:03
9:02
#20451
Half
13.11 mi13:13:221:58:079:016:01
8:49
#20413
25K
15.53 mi13:35:362:20:219:0222:14
9:10
#20293
30K
18.64 mi14:05:052:49:509:0729:29
9:29
#20102
20M
20.00 mi14:18:133:02:589:0913:08
9:40
#20034
21M
21.00 mi14:27:533:12:389:109:40
9:40
#19824
35K
21.75 mi14:35:073:19:529:117:14
9:40
#19849
23M
23.00 mi14:46:393:31:249:1111:32
9:13
#19708
24M
24.00 mi14:56:163:41:019:139:37
9:37
#19697
40K
24.85 mi15:04:293:49:149:138:13
9:37
#19673
25.2M
25.20 mi15:08:103:52:559:153:41
10:41
#19679
Finish
26.22 mi15:18:104:02:559:1610:00
9:49
#19745
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM70-74Seg. OverallSeg. MalesSeg. M70-74
5K3.11 mi3.11 mi20726124731247320302(Top 76%)12437(Top 82%)12437(Top 5839%)
10K6.21 mi3.10 mi20835-10912590-11712590-11720986(Top 79%)12710(Top 84%)12710(Top 5967%)
15K9.32 mi3.11 mi20641+19412530+6012530+6020302(Top 76%)12437(Top 82%)12437(Top 5839%)
20K12.43 mi3.11 mi20451+19012456+7412456+7419825(Top 74%)12232(Top 81%)12232(Top 5743%)
Half13.11 mi0.68 mi20413+3812445+1112445+1119571(Top 74%)12134(Top 80%)12134(Top 5697%)
25K15.53 mi2.42 mi20293+12012404+4112404+4119706(Top 74%)12151(Top 80%)12151(Top 5705%)
30K18.64 mi3.11 mi20102+19112298+10612298+10619393(Top 73%)11961(Top 79%)11961(Top 5615%)
20M20.00 mi1.36 mi20034+6812248+5012248+5019476(Top 73%)11889(Top 78%)11889(Top 5582%)
21M21.00 mi1.00 mi19824+21012165+8312165+8316680(Top 63%)10650(Top 70%)10650(Top 5000%)
35K21.75 mi0.75 mi19849-2512161+412161+420347(Top 76%)12179(Top 80%)12179(Top 5718%)
23M23.00 mi1.25 mi19708+14112098+6312098+6317113(Top 64%)10748(Top 71%)10748(Top 5046%)
24M24.00 mi1.00 mi19697+1112085+1312085+1319601(Top 74%)11810(Top 78%)11810(Top 5545%)
40K24.85 mi0.85 mi19673+2412062+2312062+2318768(Top 70%)11370(Top 75%)11370(Top 5338%)
25.2M25.20 mi0.35 mi19679-612059+312059+319624(Top 74%)11748(Top 77%)11748(Top 5515%)
Finish26.22 mi1.02 mi19745-6612083-2412083-2421185(Top 80%)12508(Top 82%)12508(Top 5872%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21story building
+97ft-345ft

Overall

20302

Males

12437

M70-74

12437

5K→10K

3.1 - 6.2 mi

Top 79%
×5story building
+79ft-138ft

Overall

20986

Males

12710

M70-74

12710

10K→15K

6.2 - 9.3 mi

Top 76%
×3story building
+67ft-78ft

Overall

20302

Males

12437

M70-74

12437

15K→20K

9.3 - 12.4 mi

Top 74%
×5story building
+106ft-86ft

Overall

19825

Males

12232

M70-74

12232

20K→Half

12.4 - 13.1 mi

Top 74%
×2story building
+19ft-37ft

Overall

19571

Males

12134

M70-74

12134

Half→25K

13.1 - 15.5 mi

Top 74%
×4story building
+66ft-88ft

Overall

19706

Males

12151

M70-74

12151

25K→30K

15.5 - 18.6 mi

Top 73%
×9story building
+181ft-148ft

Overall

19393

Males

11961

M70-74

11961

30K→20M

18.6 - 20.0 mi

Top 73%
×5story building
+64ft-50ft

Overall

19476

Males

11889

M70-74

11889

20M→21M

20.0 - 21.0 mi

Top 63%
×8story building
+106ft-24ft

Overall

16680

Males

10650

M70-74

10650

21M→35K

21.0 - 21.8 mi

Top 76%
×7story building
+17ft-86ft

Overall

20347

Males

12179

M70-74

12179

35K→23M

21.8 - 23.0 mi

Top 64%
×5story building
+23ft-63ft

Overall

17113

Males

10748

M70-74

10748

23M→24M

23.0 - 24.0 mi

Top 74%
×6story building
+12ft-82ft

Overall

19601

Males

11810

M70-74

11810

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

18768

Males

11370

M70-74

11370

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1story
+13ft-16ft

Overall

19624

Males

11748

M70-74

11748

25.2M→Finish

25.2 - 26.2 mi

Top 80%
×2story building
+22ft-21ft

Overall

21185

Males

12508

M70-74

12508

Passing Analysis

Category:
Athletes Passed
1961
Passed By
980
Net Change
+981
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20726
5K → 10K247356-109#20726#20835
10K → 15K29298+194#20835#20641
15K → 20K26777+190#20641#20451
20K → Half5012+38#20451#20413
Half → 25K17757+120#20413#20293
25K → 30K24756+191#20293#20102
30K → 20M11749+68#20102#20034
20M → 21M2177+210#20034#19824
21M → 35K3459-25#19824#19849
35K → 23M15413+141#19849#19708
23M → 24M5039+11#19708#19697
24M → 40K6440+24#19697#19673
40K → 25.2M2026-6#19673#19679
25.2M → Finish2591-66#19679#19745
TOTALS1961980+981
📊

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