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BOSTON MARATHON 2025

Stephen Hielkema

Bib: 21908•M

OH

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M60-64)
#0 / 1259
Top 39%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:52
Rank: #18853
Start → 5K
8:20/mi
25:52 split
10K· 6.21 mi
52:13
Rank: #19253 (-400)
5K → 10K
8:29/mi
26:21 split
15K· 9.32 mi
1:18:08
Rank: #18923 (+330)
10K → 15K
8:21/mi
25:55 split
20K· 12.43 mi
1:44:29
Rank: #18700 (+223)
15K → 20K
8:29/mi
26:21 split
Half· 13.11 mi
1:50:14
Rank: #18694 (+6)
20K → Half
8:26/mi
5:45 split
25K· 15.53 mi
2:10:59
Rank: #18483 (+211)
Half → 25K
8:33/mi
20:45 split
30K· 18.64 mi
2:38:18
Rank: #18049 (+434)
25K → 30K
8:48/mi
27:19 split
20M
2:50:13
Rank: #17846 (+203)
30K → 20M
8:46/mi
11:55 split
21M
2:59:24
Rank: #17639 (+207)
20M → 21M
9:11/mi
9:11 split
35K· 21.75 mi
3:06:09
Rank: #17660 (-21)
21M → 35K
9:01/mi
6:45 split
23M
3:17:41
Rank: #17630 (+30)
35K → 23M
9:13/mi
11:32 split
24M
3:26:39
Rank: #17605 (+25)
23M → 24M
8:58/mi
8:58 split
40K· 24.85 mi
3:34:15
Rank: #17516 (+89)
24M → 40K
8:53/mi
7:36 split
25.2M
3:37:23
Rank: #17450 (+66)
40K → 25.2M
9:05/mi
3:08 split
Finish· 26.22 mi
3:45:39
Rank: #17302 (+148)
25.2M → Finish
8:07/mi
8:16 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:14
Pace8:25 /mi
2nd Half
Distance13.11 mi
Time1:55:25
Pace8:48 /mi
📊Positive Split: 4.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:1125:528:2025:52
8:20
-
10K
6.21 mi11:48:3252:138:2426:21
8:29
+0:09
15K
9.32 mi12:14:271:18:088:2325:55
8:21
-0:08
20K
12.43 mi12:40:481:44:298:2426:21
8:29
+0:08
Half
13.11 mi12:46:331:50:148:255:45
8:26
-0:03
25K
15.53 mi13:07:182:10:598:2620:45
8:33
+0:07
30K
18.64 mi13:34:372:38:188:3027:19
8:48
+0:15
20M
20.00 mi13:46:322:50:138:3111:55
8:46
-0:02
21M
21.00 mi13:55:432:59:248:339:11
9:11
+0:25
35K
21.75 mi14:02:283:06:098:346:45
9:01
-0:10
23M
23.00 mi14:14:003:17:418:3611:32
9:13
+0:12
24M
24.00 mi14:22:583:26:398:378:58
8:58
-0:15
40K
24.85 mi14:30:343:34:158:377:36
8:53
-0:05
25.2M
25.20 mi14:33:423:37:238:383:08
9:05
+0:12
Finish
26.22 mi14:41:583:45:398:378:16
8:07
-0:58

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

8:07 /mi

Average Pace

8:37 /mi

Slowest Pace

9:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:06:05

82% of race

Time at Steady Pace

39:34

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:36 /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 mi11:22:1125:528:2025:52
8:20
#18853
10K
6.21 mi11:48:3252:138:2426:21
8:29
#19253
15K
9.32 mi12:14:271:18:088:2325:55
8:21
#18923
20K
12.43 mi12:40:481:44:298:2426:21
8:29
#18700
Half
13.11 mi12:46:331:50:148:255:45
8:26
#18694
25K
15.53 mi13:07:182:10:598:2620:45
8:33
#18483
30K
18.64 mi13:34:372:38:188:3027:19
8:48
#18049
20M
20.00 mi13:46:322:50:138:3111:55
8:46
#17846
21M
21.00 mi13:55:432:59:248:339:11
9:11
#17639
35K
21.75 mi14:02:283:06:098:346:45
9:01
#17660
23M
23.00 mi14:14:003:17:418:3611:32
9:13
#17630
24M
24.00 mi14:22:583:26:398:378:58
8:58
#17605
40K
24.85 mi14:30:343:34:158:377:36
8:53
#17516
25.2M
25.20 mi14:33:423:37:238:383:08
9:05
#17450
Finish
26.22 mi14:41:583:45:398:378:16
8:07
#17302
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi18853119711197118317(Top 64%)11762(Top 73%)11762(Top 934%)
10K6.21 mi3.10 mi19253-40012155-18412155-18419678(Top 69%)12329(Top 77%)12329(Top 979%)
15K9.32 mi3.11 mi18923+33012001+15412001+15418317(Top 64%)11762(Top 73%)11762(Top 934%)
20K12.43 mi3.11 mi18700+22311910+9111910+9118092(Top 64%)11645(Top 72%)11645(Top 925%)
Half13.11 mi0.68 mi18694+611908+211908+218687(Top 66%)11896(Top 74%)11896(Top 945%)
25K15.53 mi2.42 mi18483+21111800+10811800+10817517(Top 62%)11323(Top 70%)11323(Top 899%)
30K18.64 mi3.11 mi18049+43411572+22811572+22816550(Top 58%)10734(Top 67%)10734(Top 853%)
20M20.00 mi1.36 mi17846+20311455+11711455+11715481(Top 55%)10144(Top 63%)10144(Top 806%)
21M21.00 mi1.00 mi17639+20711351+10411351+10414529(Top 51%)9589(Top 60%)9589(Top 762%)
35K21.75 mi0.75 mi17660-2111341+1011341+1018310(Top 64%)11180(Top 69%)11180(Top 888%)
23M23.00 mi1.25 mi17630+3011287+5411287+5417372(Top 61%)10682(Top 66%)10682(Top 848%)
24M24.00 mi1.00 mi17605+2511246+4111246+4117176(Top 60%)10547(Top 65%)10547(Top 838%)
40K24.85 mi0.85 mi17516+8911181+6511181+6515681(Top 55%)9760(Top 61%)9760(Top 775%)
25.2M25.20 mi0.35 mi17450+6611146+3511146+3512274(Top 43%)8157(Top 51%)8157(Top 648%)
Finish26.22 mi1.02 mi17302+14811065+8111065+8113673(Top 48%)8862(Top 55%)8862(Top 704%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21story building
+97ft-345ft

Overall

18317

Males

11762

M60-64

11762

5K→10K

3.1 - 6.2 mi

Top 69%
×5story building
+79ft-138ft

Overall

19678

Males

12329

M60-64

12329

10K→15K

6.2 - 9.3 mi

Top 64%
×3story building
+67ft-78ft

Overall

18317

Males

11762

M60-64

11762

15K→20K

9.3 - 12.4 mi

Top 64%
×5story building
+106ft-86ft

Overall

18092

Males

11645

M60-64

11645

20K→Half

12.4 - 13.1 mi

Top 66%
×2story building
+19ft-37ft

Overall

18687

Males

11896

M60-64

11896

Half→25K

13.1 - 15.5 mi

Top 62%
×4story building
+66ft-88ft

Overall

17517

Males

11323

M60-64

11323

25K→30K

15.5 - 18.6 mi

Top 58%
×9story building
+181ft-148ft

Overall

16550

Males

10734

M60-64

10734

30K→20M

18.6 - 20.0 mi

Top 55%
×5story building
+64ft-50ft

Overall

15481

Males

10144

M60-64

10144

20M→21M

20.0 - 21.0 mi

Top 51%
×8story building
+106ft-24ft

Overall

14529

Males

9589

M60-64

9589

21M→35K

21.0 - 21.8 mi

Top 64%
×7story building
+17ft-86ft

Overall

18310

Males

11180

M60-64

11180

35K→23M

21.8 - 23.0 mi

Top 61%
×5story building
+23ft-63ft

Overall

17372

Males

10682

M60-64

10682

23M→24M

23.0 - 24.0 mi

Top 60%
×6story building
+12ft-82ft

Overall

17176

Males

10547

M60-64

10547

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

15681

Males

9760

M60-64

9760

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

12274

Males

8157

M60-64

8157

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2story building
+22ft-21ft

Overall

13673

Males

8862

M60-64

8862

Passing Analysis

Category:
Athletes Passed
2679
Passed By
1128
Net Change
+1551
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18853
5K → 10K126526-400#18853#19253
10K → 15K39565+330#19253#18923
15K → 20K29774+223#18923#18700
20K → Half4640+6#18700#18694
Half → 25K26554+211#18694#18483
25K → 30K48551+434#18483#18049
30K → 20M23027+203#18049#17846
20M → 21M22518+207#17846#17639
21M → 35K5677-21#17639#17660
35K → 23M12494+30#17660#17630
23M → 24M9469+25#17630#17605
24M → 40K10819+89#17605#17516
40K → 25.2M704+66#17516#17450
25.2M → Finish15810+148#17450#17302
TOTALS26791128+1551
📊

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