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BOSTON MARATHON 2025

Immanuel Baucom

Bib: 3691•M

NC

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 8%
Gender (Male)
#0 / 16105
Top 13%
Masters (Masters Men)
#0 / 10463
Top 3%
Division (M40-44)
#0 / 2247
Top 10%
Race Day Weather
50°/40°F
broken clouds

⏱️ 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
6:15/mi
19:26
↑ 97↓ 3451.5%
10K· 6.21 mi
6:06/mi
38:24
↑ 79↓ 1380.4%
15K· 9.32 mi
6:10/mi
57:32
↑ 67↓ 78
20K· 12.43 mi
6:10/mi
1:16:42
↑ 106↓ 860.1%
Half· 13.11 mi
6:15/mi
1:20:58
↑ 19↓ 370.5%
25K· 15.53 mi
6:13/mi
1:36:02
↑ 66↓ 880.2%
30K· 18.64 mi
6:34/mi
1:56:25
↑ 181↓ 1480.2%
20M
6:59/mi
2:05:55
↑ 64↓ 500.2%
21M
7:26/mi
2:13:21
↑ 106↓ 241.6%
35K· 21.75 mi
7:04/mi
2:18:38
↑ 17↓ 861.7%
23M
7:09/mi
2:27:35
↑ 23↓ 630.6%
24M
7:03/mi
2:34:38
↓ 821.3%
40K· 24.85 mi
6:51/mi
2:40:29
↓ 200.3%
25.2M
7:18/mi
2:43:00
↑ 13↓ 160.2%
Finish· 26.22 mi
6:18/mi
2:49:25
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:20:58
Pace6:11 /mi
2nd Half
Distance13.11 mi
Time1:28:27
Pace6:45 /mi
📊Positive Split: 9.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:5019:266:1519:26
6:15
-
10K
6.21 mi10:40:4838:246:1118:58
6:06
-0:09
15K
9.32 mi10:59:5657:326:1019:08
6:10
+0:04
20K
12.43 mi11:19:061:16:426:1019:10
6:10
0:00
Half
13.11 mi11:23:221:20:586:114:16
6:15
+0:05
25K
15.53 mi11:38:261:36:026:1115:04
6:13
-0:02
30K
18.64 mi11:58:491:56:256:1520:23
6:34
+0:21
20M
20.00 mi12:08:192:05:556:189:30
6:59
+0:25
21M
21.00 mi12:15:452:13:216:217:26
7:26
+0:27
35K
21.75 mi12:21:022:18:386:225:17
7:04
-0:22
23M
23.00 mi12:29:592:27:356:258:57
7:09
+0:05
24M
24.00 mi12:37:022:34:386:277:03
7:03
-0:06
40K
24.85 mi12:42:532:40:296:275:51
6:51
-0:12
25.2M
25.20 mi12:45:242:43:006:282:31
7:18
+0:27
Finish
26.22 mi12:51:492:49:256:286:25
6:18
-1:00

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

6:06 /mi

Average Pace

6:28 /mi

Slowest Pace

7:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:27

60% of race

Time at Steady Pace

20:23

12% of race

Time at Slower Pace

46:35

27% of race

Average Pace: 6:28 /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 mi10:21:5019:266:1519:26
6:15
#2163
10K
6.21 mi10:40:4838:246:1118:58
6:06
#1776
15K
9.32 mi10:59:5657:326:1019:08
6:10
#1728
20K
12.43 mi11:19:061:16:426:1019:10
6:10
#1637
Half
13.11 mi11:23:221:20:586:114:16
6:15
#1658
25K
15.53 mi11:38:261:36:026:1115:04
6:13
#1612
30K
18.64 mi11:58:491:56:256:1520:23
6:34
#1687
20M
20.00 mi12:08:192:05:556:189:30
6:59
#1813
21M
21.00 mi12:15:452:13:216:217:26
7:26
#1910
35K
21.75 mi12:21:022:18:386:225:17
7:04
#2009
23M
23.00 mi12:29:592:27:356:258:57
7:09
#2103
24M
24.00 mi12:37:022:34:386:277:03
7:03
#2173
40K
24.85 mi12:42:532:40:296:275:51
6:51
#2185
25.2M
25.20 mi12:45:242:43:006:282:31
7:18
#2177
Finish
26.22 mi12:51:492:49:256:286:25
6:18
#2152
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi2163206420641642(Top 6%)1558(Top 10%)1558(Top 69%)
10K6.21 mi3.10 mi1776+3871688+3761688+3761487(Top 5%)1412(Top 9%)1412(Top 63%)
15K9.32 mi3.11 mi1728+481643+451643+451642(Top 6%)1558(Top 10%)1558(Top 69%)
20K12.43 mi3.11 mi1637+911554+891554+891451(Top 5%)1376(Top 9%)1376(Top 61%)
Half13.11 mi0.68 mi1658-211573-191573-192224(Top 8%)2125(Top 13%)2125(Top 95%)
25K15.53 mi2.42 mi1612+461529+441529+441514(Top 5%)1439(Top 9%)1439(Top 64%)
30K18.64 mi3.11 mi1687-751603-741603-742235(Top 8%)2114(Top 13%)2114(Top 94%)
20M20.00 mi1.36 mi1813-1261725-1221725-1224021(Top 14%)3681(Top 23%)3681(Top 164%)
21M21.00 mi1.00 mi1910-971817-921817-924245(Top 15%)3803(Top 24%)3803(Top 169%)
35K21.75 mi0.75 mi2009-991910-931910-935718(Top 20%)4854(Top 30%)4854(Top 216%)
23M23.00 mi1.25 mi2103-942001-912001-914551(Top 16%)3983(Top 25%)3983(Top 177%)
24M24.00 mi1.00 mi2173-702066-652066-654869(Top 17%)4157(Top 26%)4157(Top 185%)
40K24.85 mi0.85 mi2185-122076-102076-103014(Top 11%)2710(Top 17%)2710(Top 121%)
25.2M25.20 mi0.35 mi2177+82068+82068+82450(Top 9%)2184(Top 14%)2184(Top 97%)
Finish26.22 mi1.02 mi2152+252042+262042+261864(Top 7%)1719(Top 11%)1719(Top 77%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21story building
+97ft-345ft

Overall

1642

Males

1558

M40-44

1558

5K→10K

3.1 - 6.2 mi

Top 5%
×5story building
+79ft-138ft

Overall

1487

Males

1412

M40-44

1412

10K→15K

6.2 - 9.3 mi

Top 6%
×3story building
+67ft-78ft

Overall

1642

Males

1558

M40-44

1558

15K→20K

9.3 - 12.4 mi

Top 5%
×5story building
+106ft-86ft

Overall

1451

Males

1376

M40-44

1376

20K→Half

12.4 - 13.1 mi

Top 8%
×2story building
+19ft-37ft

Overall

2224

Males

2125

M40-44

2125

Half→25K

13.1 - 15.5 mi

Top 5%
×4story building
+66ft-88ft

Overall

1514

Males

1439

M40-44

1439

25K→30K

15.5 - 18.6 mi

Top 8%
×9story building
+181ft-148ft

Overall

2235

Males

2114

M40-44

2114

30K→20M

18.6 - 20.0 mi

Top 14%
×5story building
+64ft-50ft

Overall

4021

Males

3681

M40-44

3681

20M→21M

20.0 - 21.0 mi

Top 15%
×8story building
+106ft-24ft

Overall

4245

Males

3803

M40-44

3803

21M→35K

21.0 - 21.8 mi

Top 20%
×7story building
+17ft-86ft

Overall

5718

Males

4854

M40-44

4854

35K→23M

21.8 - 23.0 mi

Top 16%
×5story building
+23ft-63ft

Overall

4551

Males

3983

M40-44

3983

23M→24M

23.0 - 24.0 mi

Top 17%
×6story building
+12ft-82ft

Overall

4869

Males

4157

M40-44

4157

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

3014

Males

2710

M40-44

2710

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2450

Males

2184

M40-44

2184

25.2M→Finish

25.2 - 26.2 mi

Top 7%
×2story building
+22ft-21ft

Overall

1864

Males

1719

M40-44

1719

Passing Analysis

Category:
Athletes Passed
879
Passed By
868
Net Change
+11
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2163
5K → 10K39912+387#2163#1776
10K → 15K8537+48#1776#1728
15K → 20K10211+91#1728#1637
20K → Half728-21#1637#1658
Half → 25K6418+46#1658#1612
25K → 30K41116-75#1612#1687
30K → 20M15141-126#1687#1813
20M → 21M15112-97#1813#1910
21M → 35K12111-99#1910#2009
35K → 23M22116-94#2009#2103
23M → 24M2292-70#2103#2173
24M → 40K3042-12#2173#2185
40K → 25.2M1810+8#2185#2177
25.2M → Finish4722+25#2177#2152
TOTALS879868+11
📊

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