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BOSTON MARATHON 2023

Ralf Krause Reis Machado

Bib: 11674•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 44%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 48%
Division (M45-49)
#0 / 2252
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
7:21/mi
22:49
↑ 97↓ 3451.5%
10K· 6.21 mi
7:11/mi
45:07
↑ 79↓ 1380.4%
15K· 9.32 mi
7:22/mi
1:08:01
↑ 67↓ 78
20K· 12.43 mi
7:39/mi
1:31:47
↑ 106↓ 860.1%
Half· 13.11 mi
7:37/mi
1:36:59
↑ 19↓ 370.5%
25K· 15.53 mi
7:54/mi
1:56:08
↑ 66↓ 880.2%
30K· 18.64 mi
8:36/mi
2:22:50
↑ 181↓ 1480.2%
20M
8:26/mi
2:34:17
↑ 64↓ 500.2%
21M
9:19/mi
2:43:36
↑ 106↓ 241.6%
35K· 21.75 mi
8:12/mi
2:49:44
↑ 17↓ 861.7%
23M
8:54/mi
3:00:52
↑ 23↓ 630.6%
24M
8:24/mi
3:09:16
↓ 821.3%
40K· 24.85 mi
8:36/mi
3:16:37
↓ 200.3%
25.2M
9:05/mi
3:19:45
↑ 13↓ 160.2%
Finish· 26.22 mi
8:22/mi
3:28:17
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:59
Pace7:24 /mi
2nd Half
Distance13.11 mi
Time1:51:18
Pace8:29 /mi
📊Positive Split: 14.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:2622:497:2122:49
7:21
-
10K
6.21 mi11:11:4445:077:1622:18
7:11
-0:10
15K
9.32 mi11:34:381:08:017:1822:54
7:22
+0:11
20K
12.43 mi11:58:241:31:477:2323:46
7:39
+0:17
Half
13.11 mi12:03:361:36:597:245:12
7:37
-0:02
25K
15.53 mi12:22:451:56:087:2919:09
7:54
+0:17
30K
18.64 mi12:49:272:22:507:4026:42
8:36
+0:42
20M
20.00 mi13:00:542:34:177:4311:27
8:26
-0:10
21M
21.00 mi13:10:132:43:367:479:19
9:19
+0:53
35K
21.75 mi13:16:212:49:447:486:08
8:12
-1:07
23M
23.00 mi13:27:293:00:527:5211:08
8:54
+0:42
24M
24.00 mi13:35:533:09:167:538:24
8:24
-0:30
40K
24.85 mi13:43:143:16:377:557:21
8:36
+0:12
25.2M
25.20 mi13:46:223:19:457:563:08
9:05
+0:29
Finish
26.22 mi13:54:543:28:177:578:32
8:22
-0:43

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

7:11 /mi

Average Pace

7:57 /mi

Slowest Pace

9:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:56:08

56% of race

Time at Steady Pace

1:08:34

33% of race

Time at Slower Pace

23:35

11% of race

Average Pace: 7:57 /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 mi10:49:2622:497:2122:49
7:21
#8411
10K
6.21 mi11:11:4445:077:1622:18
7:11
#8193
15K
9.32 mi11:34:381:08:017:1822:54
7:22
#8446
20K
12.43 mi11:58:241:31:477:2323:46
7:39
#8891
Half
13.11 mi12:03:361:36:597:245:12
7:37
#9008
25K
15.53 mi12:22:451:56:087:2919:09
7:54
#9445
30K
18.64 mi12:49:272:22:507:4026:42
8:36
#10452
20M
20.00 mi13:00:542:34:177:4311:27
8:26
#10675
21M
21.00 mi13:10:132:43:367:479:19
9:19
#10932
35K
21.75 mi13:16:212:49:447:486:08
8:12
#11018
23M
23.00 mi13:27:293:00:527:5211:08
8:54
#11330
24M
24.00 mi13:35:533:09:167:538:24
8:24
#11467
40K
24.85 mi13:43:143:16:377:557:21
8:36
#11577
25.2M
25.20 mi13:46:223:19:457:563:08
9:05
#11580
Finish
26.22 mi13:54:543:28:177:578:32
8:22
#11706
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi8411724772479105(Top 34%)7608(Top 50%)7608(Top 338%)
10K6.21 mi3.10 mi8193+2187083+1647083+1647951(Top 30%)6907(Top 46%)6907(Top 307%)
15K9.32 mi3.11 mi8446-2537240-1577240-1579105(Top 34%)7608(Top 50%)7608(Top 338%)
20K12.43 mi3.11 mi8891-4457489-2497489-24910505(Top 39%)8347(Top 55%)8347(Top 371%)
Half13.11 mi0.68 mi9008-1177551-627551-6211179(Top 42%)8711(Top 57%)8711(Top 387%)
25K15.53 mi2.42 mi9445-4377807-2567807-25611892(Top 45%)8861(Top 58%)8861(Top 393%)
30K18.64 mi3.11 mi10452-10078315-5088315-50814869(Top 56%)9992(Top 66%)9992(Top 444%)
20M20.00 mi1.36 mi10675-2238390-758390-7513139(Top 49%)9184(Top 61%)9184(Top 408%)
21M21.00 mi1.00 mi10932-2578490-1008490-10015039(Top 56%)9935(Top 65%)9935(Top 441%)
35K21.75 mi0.75 mi11018-868522-328522-3213364(Top 50%)9139(Top 60%)9139(Top 406%)
23M23.00 mi1.25 mi11330-3128639-1178639-11715470(Top 58%)10010(Top 66%)10010(Top 444%)
24M24.00 mi1.00 mi11467-1378680-418680-4113843(Top 52%)9240(Top 61%)9240(Top 410%)
40K24.85 mi0.85 mi11577-1108708-288708-2813895(Top 52%)9185(Top 61%)9185(Top 408%)
25.2M25.20 mi0.35 mi11580-38701+78701+712951(Top 49%)8731(Top 58%)8731(Top 388%)
Finish26.22 mi1.02 mi11706-1268730-298730-2914531(Top 55%)9500(Top 63%)9500(Top 422%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21story building
+97ft-345ft

Overall

9105

Males

7608

M45-49

7608

5K→10K

3.1 - 6.2 mi

Top 30%
×5story building
+79ft-138ft

Overall

7951

Males

6907

M45-49

6907

10K→15K

6.2 - 9.3 mi

Top 34%
×3story building
+67ft-78ft

Overall

9105

Males

7608

M45-49

7608

15K→20K

9.3 - 12.4 mi

Top 39%
×5story building
+106ft-86ft

Overall

10505

Males

8347

M45-49

8347

20K→Half

12.4 - 13.1 mi

Top 42%
×2story building
+19ft-37ft

Overall

11179

Males

8711

M45-49

8711

Half→25K

13.1 - 15.5 mi

Top 45%
×4story building
+66ft-88ft

Overall

11892

Males

8861

M45-49

8861

25K→30K

15.5 - 18.6 mi

Top 56%
×9story building
+181ft-148ft

Overall

14869

Males

9992

M45-49

9992

30K→20M

18.6 - 20.0 mi

Top 49%
×5story building
+64ft-50ft

Overall

13139

Males

9184

M45-49

9184

20M→21M

20.0 - 21.0 mi

Top 56%
×8story building
+106ft-24ft

Overall

15039

Males

9935

M45-49

9935

21M→35K

21.0 - 21.8 mi

Top 50%
×7story building
+17ft-86ft

Overall

13364

Males

9139

M45-49

9139

35K→23M

21.8 - 23.0 mi

Top 58%
×5story building
+23ft-63ft

Overall

15470

Males

10010

M45-49

10010

23M→24M

23.0 - 24.0 mi

Top 52%
×6story building
+12ft-82ft

Overall

13843

Males

9240

M45-49

9240

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

13895

Males

9185

M45-49

9185

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

12951

Males

8731

M45-49

8731

25.2M→Finish

25.2 - 26.2 mi

Top 55%
×2story building
+22ft-21ft

Overall

14531

Males

9500

M45-49

9500

Passing Analysis

Category:
Athletes Passed
777*
Passed By
4071
Net Change
-3295
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8411
5K → 10K365147+218#8411#8193
10K → 15K64317-253#8193#8446
15K → 20K39484-445#8446#8891
20K → Half4121-117#8891#9008
Half → 25K30467-437#9008#9445
25K → 30K281034-1007#9445#10452
30K → 20M29*252-223#10452#10675
20M → 21M19276-257#10675#10932
21M → 35K27113-86#10932#11018
35K → 23M36348-312#11018#11330
23M → 24M28165-137#11330#11467
24M → 40K36146-110#11467#11577
40K → 25.2M3740-3#11577#11580
25.2M → Finish35161-126#11580#11706
TOTALS777*4071-3295

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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