Boston Marathon logo
BOSTON MARATHON 2025

Chris-Heijn De Vries

Bib: 10948•M

ME

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Top 31%
Gender (Male)
#0 / 16105
Top 44%
Masters (Masters Men)
#0 / 10463
Top 32%
Division (M45-49)
#0 / 2386
Top 46%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:50
Rank: #10832
Start → 5K
22:50 | 7:21/mi
10K· 6.21 mi
45:34
Rank: #10608 (+224)
5K → 10K
22:44 | 7:19/mi
15K· 9.32 mi
1:08:06
Rank: #10258 (+350)
10K → 15K
22:32 | 7:15/mi
20K· 12.43 mi
1:30:29
Rank: #9698 (+560)
15K → 20K
22:23 | 7:12/mi
Half· 13.11 mi
1:35:23
Rank: #9650 (+48)
20K → Half
4:54 | 7:11/mi
25K· 15.53 mi
1:53:01
Rank: #9354 (+296)
Half → 25K
17:38 | 7:16/mi
30K· 18.64 mi
2:16:14
Rank: #8906 (+448)
25K → 30K
23:13 | 7:28/mi
20M
2:26:29
Rank: #8735 (+171)
30K → 20M
10:15 | 7:33/mi
21M
2:34:30
Rank: #8615 (+120)
20M → 21M
8:01 | 8:01/mi
35K· 21.75 mi
2:40:18
Rank: #8654 (-39)
21M → 35K
5:48 | 7:45/mi
23M
2:50:28
Rank: #8749 (-95)
35K → 23M
10:10 | 8:07/mi
24M
2:58:17
Rank: #8768 (-19)
23M → 24M
7:49 | 7:49/mi
40K· 24.85 mi
3:05:05
Rank: #8776 (-8)
24M → 40K
6:48 | 7:57/mi
25.2M
3:08:03
Rank: #8771 (+5)
40K → 25.2M
2:58 | 8:36/mi
Finish· 26.22 mi
3:15:54
Rank: #8843 (-72)
25.2M → Finish
7:51 | 7:42/mi

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
Time1:35:23
Pace7:17 /mi
2nd Half
Distance13.11 mi
Time1:40:31
Pace7:40 /mi
📊Positive Split: 5.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:4422:507:2122:50
7:21
-
10K
6.21 mi11:12:2845:347:2022:44
7:19
-0:02
15K
9.32 mi11:35:001:08:067:1822:32
7:15
-0:04
20K
12.43 mi11:57:231:30:297:1722:23
7:12
-0:03
Half
13.11 mi12:02:171:35:237:174:54
7:11
-0:01
25K
15.53 mi12:19:551:53:017:1717:38
7:16
+0:05
30K
18.64 mi12:43:082:16:147:1823:13
7:28
+0:12
20M
20.00 mi12:53:232:26:297:1910:15
7:33
+0:05
21M
21.00 mi13:01:242:34:307:218:01
8:01
+0:28
35K
21.75 mi13:07:122:40:187:225:48
7:45
-0:16
23M
23.00 mi13:17:222:50:287:2510:10
8:07
+0:22
24M
24.00 mi13:25:112:58:177:267:49
7:49
-0:18
40K
24.85 mi13:31:593:05:057:276:48
7:57
+0:08
25.2M
25.20 mi13:34:573:08:037:282:58
8:36
+0:39
Finish
26.22 mi13:42:483:15:547:297:51
7:42
-0:54

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

7:29 /mi

Slowest Pace

8:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:47:57

86% of race

Time at Steady Pace

24:59

13% of race

Time at Slower Pace

2:58

2% of race

Average Pace: 7:28 /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 mi10:49:4422:507:2122:50
7:21
#10832
10K
6.21 mi11:12:2845:347:2022:44
7:19
#10608
15K
9.32 mi11:35:001:08:067:1822:32
7:15
#10258
20K
12.43 mi11:57:231:30:297:1722:23
7:12
#9698
Half
13.11 mi12:02:171:35:237:174:54
7:11
#9650
25K
15.53 mi12:19:551:53:017:1717:38
7:16
#9354
30K
18.64 mi12:43:082:16:147:1823:13
7:28
#8906
20M
20.00 mi12:53:232:26:297:1910:15
7:33
#8735
21M
21.00 mi13:01:242:34:307:218:01
8:01
#8615
35K
21.75 mi13:07:122:40:187:225:48
7:45
#8654
23M
23.00 mi13:17:222:50:287:2510:10
8:07
#8749
24M
24.00 mi13:25:112:58:177:267:49
7:49
#8768
40K
24.85 mi13:31:593:05:057:276:48
7:57
#8776
25.2M
25.20 mi13:34:573:08:037:282:58
8:36
#8771
Finish
26.22 mi13:42:483:15:547:297:51
7:42
#8843
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi10832860386039564(Top 34%)7851(Top 49%)7851(Top 329%)
10K6.21 mi3.10 mi10608+2248466+1378466+13710474(Top 37%)8393(Top 52%)8393(Top 352%)
15K9.32 mi3.11 mi10258+3508276+1908276+1909564(Top 34%)7851(Top 49%)7851(Top 329%)
20K12.43 mi3.11 mi9698+5607938+3387938+3388246(Top 29%)7018(Top 44%)7018(Top 294%)
Half13.11 mi0.68 mi9650+487910+287910+288898(Top 31%)7420(Top 46%)7420(Top 311%)
25K15.53 mi2.42 mi9354+2967721+1897721+1898143(Top 29%)6848(Top 43%)6848(Top 287%)
30K18.64 mi3.11 mi8906+4487409+3127409+3127558(Top 27%)6321(Top 39%)6321(Top 265%)
20M20.00 mi1.36 mi8735+1717278+1317278+1317307(Top 26%)6031(Top 37%)6031(Top 253%)
21M21.00 mi1.00 mi8615+1207180+987180+987432(Top 26%)5935(Top 37%)5935(Top 249%)
35K21.75 mi0.75 mi8654-397180718010415(Top 37%)7569(Top 47%)7569(Top 317%)
23M23.00 mi1.25 mi8749-957196-167196-1610852(Top 38%)7670(Top 48%)7670(Top 321%)
24M24.00 mi1.00 mi8768-197169+277169+279896(Top 35%)7105(Top 44%)7105(Top 298%)
40K24.85 mi0.85 mi8776-87129+407129+409812(Top 35%)6947(Top 43%)6947(Top 291%)
25.2M25.20 mi0.35 mi8771+57113+167113+169352(Top 33%)6604(Top 41%)6604(Top 277%)
Finish26.22 mi1.02 mi8843-727119-67119-610695(Top 38%)7350(Top 46%)7350(Top 308%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21stories
+97ft-345ft

Overall

9564

Males

7851

M45-49

7851

5K→10K

3.1 - 6.2 mi

Top 37%
×5stories
+79ft-138ft

Overall

10474

Males

8393

M45-49

8393

10K→15K

6.2 - 9.3 mi

Top 34%
×3stories
+67ft-78ft

Overall

9564

Males

7851

M45-49

7851

15K→20K

9.3 - 12.4 mi

Top 29%
×5stories
+106ft-86ft

Overall

8246

Males

7018

M45-49

7018

20K→Half

12.4 - 13.1 mi

Top 31%
×2stories
+19ft-37ft

Overall

8898

Males

7420

M45-49

7420

Half→25K

13.1 - 15.5 mi

Top 29%
×4stories
+66ft-88ft

Overall

8143

Males

6848

M45-49

6848

25K→30K

15.5 - 18.6 mi

Top 27%
×9stories
+181ft-148ft

Overall

7558

Males

6321

M45-49

6321

30K→20M

18.6 - 20.0 mi

Top 26%
×5stories
+64ft-50ft

Overall

7307

Males

6031

M45-49

6031

20M→21M

20.0 - 21.0 mi

Top 26%
×8stories
+106ft-24ft

Overall

7432

Males

5935

M45-49

5935

21M→35K

21.0 - 21.8 mi

Top 37%
×7stories
+17ft-86ft

Overall

10415

Males

7569

M45-49

7569

35K→23M

21.8 - 23.0 mi

Top 38%
×5stories
+23ft-63ft

Overall

10852

Males

7670

M45-49

7670

23M→24M

23.0 - 24.0 mi

Top 35%
×6stories
+12ft-82ft

Overall

9896

Males

7105

M45-49

7105

24M→40K

24.0 - 24.9 mi

Top 35%
×1story
+6ft-20ft

Overall

9812

Males

6947

M45-49

6947

40K→25.2M

24.9 - 25.2 mi

Top 33%
×1story
+13ft-16ft

Overall

9352

Males

6604

M45-49

6604

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2stories
+22ft-21ft

Overall

10695

Males

7350

M45-49

7350

Passing Analysis

Category:
Athletes Passed
2939*
Passed By
950
Net Change
+1989
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10832
5K → 10K390166+224#10832#10608
10K → 15K38232+350#10608#10258
15K → 20K567*7+560#10258#9698
20K → Half6214+48#9698#9650
Half → 25K32125+296#9650#9354
25K → 30K48234+448#9354#8906
30K → 20M19221+171#8906#8735
20M → 21M15333+120#8735#8615
21M → 35K4988-39#8615#8654
35K → 23M92187-95#8654#8749
23M → 24M7392-19#8749#8768
24M → 40K8290-8#8768#8776
40K → 25.2M4035+5#8776#8771
25.2M → Finish54126-72#8771#8843
TOTALS2939*950+1989

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

📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing