Boston Marathon logo
BOSTON MARATHON 2023

Silvano Rumantir

Bib: 31551•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M40-44)
#0 / 2241
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
9:14/mi
28:42
↑ 97↓ 3451.5%
10K· 6.21 mi
8:58/mi
56:34
↑ 79↓ 1380.4%
15K· 9.32 mi
9:08/mi
1:24:57
↑ 67↓ 78
20K· 12.43 mi
9:23/mi
1:54:07
↑ 106↓ 860.1%
Half· 13.11 mi
8:42/mi
2:00:03
↑ 19↓ 370.5%
25K· 15.53 mi
9:10/mi
2:22:17
↑ 66↓ 880.2%
30K· 18.64 mi
9:37/mi
2:52:10
↑ 181↓ 1480.2%
20M
9:54/mi
3:05:37
↑ 64↓ 500.2%
21M
10:59/mi
3:16:36
↑ 106↓ 241.6%
35K· 21.75 mi
9:21/mi
3:23:36
↑ 17↓ 861.7%
23M
10:06/mi
3:36:15
↑ 23↓ 630.6%
24M
9:42/mi
3:45:57
↓ 821.3%
40K· 24.85 mi
9:46/mi
3:54:18
↓ 200.3%
25.2M
13:23/mi
3:58:55
↑ 13↓ 160.2%
Finish· 26.22 mi
9:07/mi
4:08:12
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:00:03
Pace9:09 /mi
2nd Half
Distance13.11 mi
Time2:08:09
Pace9:47 /mi
📊Positive Split: 6.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:4128:429:1428:42
9:14
-
10K
6.21 mi12:17:3356:349:0627:52
8:58
-0:16
15K
9.32 mi12:45:561:24:579:0728:23
9:08
+0:10
20K
12.43 mi13:15:061:54:079:1129:10
9:23
+0:15
Half
13.11 mi13:21:022:00:039:095:56
8:42
-0:41
25K
15.53 mi13:43:162:22:179:1022:14
9:10
+0:28
30K
18.64 mi14:13:092:52:109:1429:53
9:37
+0:27
20M
20.00 mi14:26:363:05:379:1713:27
9:54
+0:17
21M
21.00 mi14:37:353:16:369:2210:59
10:59
+1:05
35K
21.75 mi14:44:353:23:369:227:00
9:21
-1:38
23M
23.00 mi14:57:143:36:159:2412:39
10:06
+0:45
24M
24.00 mi15:06:563:45:579:259:42
9:42
-0:24
40K
24.85 mi15:15:173:54:189:268:21
9:46
+0:04
25.2M
25.20 mi15:19:543:58:559:294:37
13:23
+3:37
Finish
26.22 mi15:29:114:08:129:289:17
9:07
-4:16

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

8:42 /mi

Average Pace

9:28 /mi

Slowest Pace

13:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

5:56

2% of race

Time at Steady Pace

3:34:01

86% of race

Time at Slower Pace

28:15

11% of race

Average Pace: 9:28 /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 mi11:49:4128:429:1428:42
9:14
#21318
10K
6.21 mi12:17:3356:349:0627:52
8:58
#21064
15K
9.32 mi12:45:561:24:579:0728:23
9:08
#21085
20K
12.43 mi13:15:061:54:079:1129:10
9:23
#21123
Half
13.11 mi13:21:022:00:039:095:56
8:42
#21026
25K
15.53 mi13:43:162:22:179:1022:14
9:10
#20799
30K
18.64 mi14:13:092:52:109:1429:53
9:37
#20590
20M
20.00 mi14:26:363:05:379:1713:27
9:54
#20548
21M
21.00 mi14:37:353:16:369:2210:59
10:59
#20548
35K
21.75 mi14:44:353:23:369:227:00
9:21
#20502
23M
23.00 mi14:57:143:36:159:2412:39
10:06
#20467
24M
24.00 mi15:06:563:45:579:259:42
9:42
#20438
40K
24.85 mi15:15:173:54:189:268:21
9:46
#20382
25.2M
25.20 mi15:19:543:58:559:294:37
13:23
#20489
Finish
26.22 mi15:29:114:08:129:289:17
9:07
#20418
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi21318127601276021083(Top 79%)12780(Top 84%)12780(Top 570%)
10K6.21 mi3.10 mi21064+25412689+7112689+7120743(Top 78%)12606(Top 83%)12606(Top 563%)
15K9.32 mi3.11 mi21085-2112729-4012729-4021083(Top 79%)12780(Top 84%)12780(Top 570%)
20K12.43 mi3.11 mi21123-3812760-3112760-3121212(Top 80%)12840(Top 85%)12840(Top 573%)
Half13.11 mi0.68 mi21026+9712722+3812722+3818904(Top 71%)11869(Top 78%)11869(Top 530%)
25K15.53 mi2.42 mi20799+22712632+9012632+9019709(Top 74%)12154(Top 80%)12154(Top 542%)
30K18.64 mi3.11 mi20590+20912512+12012512+12019857(Top 75%)12151(Top 80%)12151(Top 542%)
20M20.00 mi1.36 mi20548+4212476+3612476+3620167(Top 76%)12185(Top 80%)12185(Top 544%)
21M21.00 mi1.00 mi2054812468+812468+820793(Top 78%)12422(Top 82%)12422(Top 554%)
35K21.75 mi0.75 mi20502+4612438+3012438+3019360(Top 73%)11761(Top 77%)11761(Top 525%)
23M23.00 mi1.25 mi20467+3512410+2812410+2820276(Top 76%)12135(Top 80%)12135(Top 541%)
24M24.00 mi1.00 mi20438+2912388+2212388+2219889(Top 75%)11959(Top 79%)11959(Top 534%)
40K24.85 mi0.85 mi20382+5612358+3012358+3019262(Top 72%)11608(Top 76%)11608(Top 518%)
25.2M25.20 mi0.35 mi20489-10712401-4312401-4324394(Top 92%)13993(Top 92%)13993(Top 624%)
Finish26.22 mi1.02 mi20418+7112358+4312358+4318503(Top 70%)11316(Top 75%)11316(Top 505%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21story building
+97ft-345ft

Overall

21083

Males

12780

M40-44

12780

5K→10K

3.1 - 6.2 mi

Top 78%
×5story building
+79ft-138ft

Overall

20743

Males

12606

M40-44

12606

10K→15K

6.2 - 9.3 mi

Top 79%
×3story building
+67ft-78ft

Overall

21083

Males

12780

M40-44

12780

15K→20K

9.3 - 12.4 mi

Top 80%
×5story building
+106ft-86ft

Overall

21212

Males

12840

M40-44

12840

20K→Half

12.4 - 13.1 mi

Top 71%
×2story building
+19ft-37ft

Overall

18904

Males

11869

M40-44

11869

Half→25K

13.1 - 15.5 mi

Top 74%
×4story building
+66ft-88ft

Overall

19709

Males

12154

M40-44

12154

25K→30K

15.5 - 18.6 mi

Top 75%
×9story building
+181ft-148ft

Overall

19857

Males

12151

M40-44

12151

30K→20M

18.6 - 20.0 mi

Top 76%
×5story building
+64ft-50ft

Overall

20167

Males

12185

M40-44

12185

20M→21M

20.0 - 21.0 mi

Top 78%
×8story building
+106ft-24ft

Overall

20793

Males

12422

M40-44

12422

21M→35K

21.0 - 21.8 mi

Top 73%
×7story building
+17ft-86ft

Overall

19360

Males

11761

M40-44

11761

35K→23M

21.8 - 23.0 mi

Top 76%
×5story building
+23ft-63ft

Overall

20276

Males

12135

M40-44

12135

23M→24M

23.0 - 24.0 mi

Top 75%
×6story building
+12ft-82ft

Overall

19889

Males

11959

M40-44

11959

24M→40K

24.0 - 24.9 mi

Top 72%
×1story
+6ft-20ft

Overall

19262

Males

11608

M40-44

11608

40K→25.2M

24.9 - 25.2 mi

Top 92%
×1story
+13ft-16ft

Overall

24394

Males

13993

M40-44

13993

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2story building
+22ft-21ft

Overall

18503

Males

11316

M40-44

11316

Passing Analysis

Category:
Athletes Passed
1836
Passed By
936
Net Change
+900
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21318
5K → 10K420166+254#21318#21064
10K → 15K162183-21#21064#21085
15K → 20K135173-38#21085#21123
20K → Half1003+97#21123#21026
Half → 25K24215+227#21026#20799
25K → 30K25344+209#20799#20590
30K → 20M9048+42#20590#20548
20M → 21M72720#20548#20548
21M → 35K6519+46#20548#20502
35K → 23M8146+35#20502#20467
23M → 24M5930+29#20467#20438
24M → 40K6913+56#20438#20382
40K → 25.2M4111-107#20382#20489
25.2M → Finish8413+71#20489#20418
TOTALS1836936+900
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing