Boston Marathon logo
BOSTON MARATHON 2025

Chase Greenhagen

Bib: 2858•M

IN

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 3%
Gender (Male)
#0 / 16105
Top 6%
Division (M18-39)
#0 / 5642
Top 13%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
17:53
Rank: #524
Start → 5K
17:53 | 5:45/mi
10K· 6.21 mi
35:41
Rank: #516 (+8)
5K → 10K
17:48 | 5:44/mi
15K· 9.32 mi
54:07
Rank: #584 (-68)
10K → 15K
18:26 | 5:56/mi
20K· 12.43 mi
1:12:54
Rank: #658 (-74)
15K → 20K
18:47 | 6:03/mi
Half· 13.11 mi
1:16:56
Rank: #661 (-3)
20K → Half
4:02 | 5:55/mi
25K· 15.53 mi
1:31:44
Rank: #708 (-47)
Half → 25K
14:48 | 6:06/mi
30K· 18.64 mi
1:51:21
Rank: #772 (-64)
25K → 30K
19:37 | 6:19/mi
20M
2:00:07
Rank: #788 (-16)
30K → 20M
8:46 | 6:27/mi
21M
2:06:55
Rank: #795 (-7)
20M → 21M
6:48 | 6:48/mi
35K· 21.75 mi
2:11:33
Rank: #796 (-1)
21M → 35K
4:38 | 6:12/mi
23M
2:19:47
Rank: #817 (-21)
35K → 23M
8:14 | 6:35/mi
24M
2:26:19
Rank: #844 (-27)
23M → 24M
6:32 | 6:32/mi
40K· 24.85 mi
2:32:13
Rank: #903 (-59)
24M → 40K
5:54 | 6:54/mi
25.2M
2:34:40
Rank: #901 (+2)
40K → 25.2M
2:27 | 7:06/mi
Finish· 26.22 mi
2:41:25
Rank: #946 (-45)
25.2M → Finish
6:45 | 6:37/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
Time1:16:56
Pace5:52 /mi
2nd Half
Distance13.11 mi
Time1:24:29
Pace6:27 /mi
📊Positive Split: 9.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:4917:535:4517:53
5:45
-
10K
6.21 mi10:36:3735:415:4517:48
5:44
-0:01
15K
9.32 mi10:55:0354:075:4818:26
5:56
+0:12
20K
12.43 mi11:13:501:12:545:5218:47
6:03
+0:07
Half
13.11 mi11:17:521:16:565:524:02
5:55
-0:08
25K
15.53 mi11:32:401:31:445:5414:48
6:06
+0:11
30K
18.64 mi11:52:171:51:215:5819:37
6:19
+0:13
20M
20.00 mi12:01:032:00:076:008:46
6:27
+0:08
21M
21.00 mi12:07:512:06:556:036:48
6:48
+0:21
35K
21.75 mi12:12:292:11:336:034:38
6:12
-0:36
23M
23.00 mi12:20:432:19:476:058:14
6:35
+0:23
24M
24.00 mi12:27:152:26:196:066:32
6:32
-0:03
40K
24.85 mi12:33:092:32:136:075:54
6:54
+0:22
25.2M
25.20 mi12:35:362:34:406:082:27
7:06
+0:12
Finish
26.22 mi12:42:212:41:256:106:45
6:37
-0:29

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

5:44 /mi

Average Pace

6:10 /mi

Slowest Pace

7:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:31:44

57% of race

Time at Steady Pace

33:01

20% of race

Time at Slower Pace

36:40

23% of race

Average Pace: 6:09 /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 mi10:18:4917:535:4517:53
5:45
#524
10K
6.21 mi10:36:3735:415:4517:48
5:44
#516
15K
9.32 mi10:55:0354:075:4818:26
5:56
#584
20K
12.43 mi11:13:501:12:545:5218:47
6:03
#658
Half
13.11 mi11:17:521:16:565:524:02
5:55
#661
25K
15.53 mi11:32:401:31:445:5414:48
6:06
#708
30K
18.64 mi11:52:171:51:215:5819:37
6:19
#772
20M
20.00 mi12:01:032:00:076:008:46
6:27
#788
21M
21.00 mi12:07:512:06:556:036:48
6:48
#795
35K
21.75 mi12:12:292:11:336:034:38
6:12
#796
23M
23.00 mi12:20:432:19:476:058:14
6:35
#817
24M
24.00 mi12:27:152:26:196:066:32
6:32
#844
40K
24.85 mi12:33:092:32:136:075:54
6:54
#903
25.2M
25.20 mi12:35:362:34:406:082:27
7:06
#901
Finish
26.22 mi12:42:212:41:256:106:45
6:37
#946
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi524486486833(Top 3%)781(Top 5%)781(Top 14%)
10K6.21 mi3.10 mi516+8478+8478+8504(Top 2%)467(Top 3%)467(Top 8%)
15K9.32 mi3.11 mi584-68541-63541-63833(Top 3%)781(Top 5%)781(Top 14%)
20K12.43 mi3.11 mi658-74611-70611-70987(Top 3%)930(Top 6%)930(Top 16%)
Half13.11 mi0.68 mi661-3614-3614-3875(Top 3%)827(Top 5%)827(Top 15%)
25K15.53 mi2.42 mi708-47660-46660-461104(Top 4%)1040(Top 6%)1040(Top 18%)
30K18.64 mi3.11 mi772-64723-63723-631240(Top 4%)1170(Top 7%)1170(Top 21%)
20M20.00 mi1.36 mi788-16738-15738-151415(Top 5%)1337(Top 8%)1337(Top 24%)
21M21.00 mi1.00 mi795-7745-7745-71509(Top 5%)1420(Top 9%)1420(Top 25%)
35K21.75 mi0.75 mi796-1746-1746-11178(Top 4%)1109(Top 7%)1109(Top 20%)
23M23.00 mi1.25 mi817-21765-19765-191717(Top 6%)1605(Top 10%)1605(Top 28%)
24M24.00 mi1.00 mi844-27791-26791-262152(Top 8%)1992(Top 12%)1992(Top 35%)
40K24.85 mi0.85 mi903-59846-55846-553303(Top 12%)2945(Top 18%)2945(Top 52%)
25.2M25.20 mi0.35 mi901+2844+2844+21749(Top 6%)1588(Top 10%)1588(Top 28%)
Finish26.22 mi1.02 mi946-45888-44888-443416(Top 12%)2985(Top 19%)2985(Top 53%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21stories
+97ft-345ft

Overall

833

Males

781

M18-39

781

5K→10K

3.1 - 6.2 mi

Top 2%
×5stories
+79ft-138ft

Overall

504

Males

467

M18-39

467

10K→15K

6.2 - 9.3 mi

Top 3%
×3stories
+67ft-78ft

Overall

833

Males

781

M18-39

781

15K→20K

9.3 - 12.4 mi

Top 3%
×5stories
+106ft-86ft

Overall

987

Males

930

M18-39

930

20K→Half

12.4 - 13.1 mi

Top 3%
×2stories
+19ft-37ft

Overall

875

Males

827

M18-39

827

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

1104

Males

1040

M18-39

1040

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

1240

Males

1170

M18-39

1170

30K→20M

18.6 - 20.0 mi

Top 5%
×5stories
+64ft-50ft

Overall

1415

Males

1337

M18-39

1337

20M→21M

20.0 - 21.0 mi

Top 5%
×8stories
+106ft-24ft

Overall

1509

Males

1420

M18-39

1420

21M→35K

21.0 - 21.8 mi

Top 4%
×7stories
+17ft-86ft

Overall

1178

Males

1109

M18-39

1109

35K→23M

21.8 - 23.0 mi

Top 6%
×5stories
+23ft-63ft

Overall

1717

Males

1605

M18-39

1605

23M→24M

23.0 - 24.0 mi

Top 8%
×6stories
+12ft-82ft

Overall

2152

Males

1992

M18-39

1992

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3303

Males

2945

M18-39

2945

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1749

Males

1588

M18-39

1588

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2stories
+22ft-21ft

Overall

3416

Males

2985

M18-39

2985

Passing Analysis

Category:
Athletes Passed
156
Passed By
578
Net Change
-422
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#524
5K → 10K3325+8#524#516
10K → 15K573-68#516#584
15K → 20K983-74#584#658
20K → Half710-3#658#661
Half → 25K1259-47#661#708
25K → 30K1579-64#708#772
30K → 20M1430-16#772#788
20M → 21M1118-7#788#795
21M → 35K1617-1#795#796
35K → 23M1031-21#796#817
23M → 24M734-27#817#844
24M → 40K564-59#844#903
40K → 25.2M86+2#903#901
25.2M → Finish449-45#901#946
TOTALS156578-422
📊

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